Moment armed police probing sergeant Matt Ratana’s murder blow doors off barn with ‘huge explosion’

The suspect in the murder of police officer Sergeant Matiu Ratana in south London is Louis De Zoysa, it has been reported.

New Zealand-born Sgt Ratana, 54, died in hospital after being shot at the Croydon custody centre as a handcuffed suspect was taken into custody on Friday morning.

Mr De Zoysa, 23, from Norbury, who is thought to have also shot himself in the incident, has named as the suspect by the BBC.

It is believed the suspect died in hospital, but was revived by medics and is now critically ill under armed guard, and is yet to be questioned by investigators.

De Zoysa lived at his family home in Surrey with father Channa de Zoysa and his wife Elizabeth, and brother John. Neighbours have described Louis as ‘very awkward and kept himself to himself’.

The revelation comes as armed police blew the doors off a barn in a ‘huge explosion’ as part of a raid in Surrey.

A man was also arrested in Norwich on suspicion of supplying a firearm linked to the murder.

Prince Charles today led the tributes for Sgt Ratana today while speaking virtually on National Police Memorial Day, saying his death is the ‘latest heartbreaking evidence’ of the daily risks law enforcement officers face. 

He added: ‘The dreadful incident in Croydon on Friday is the latest heartbreaking evidence of the risks faced by our officers daily.

‘I would like to send my deepest sympathy to the families of each of these officers who have given their lives.

‘These are losses we can never replace, sacrifices we can never repay, but of which, as a society, we can only strive to be worthy.’ 

Sgt Ratana was shot dead while working at Croydon Custody Centre on Friday, while the suspected gunman remains in a critical condition in hospital.

Police arrested a man in Norwich at around 2am this morning on suspicion of supplying a firearm. He is currently in custody at a South London police station. 

Armed police raided a farmhouse early yesterday morning in a wealthy stockbroker belt village in connection with the murder.

Officers are understood to have blown the door off one of three properties at Courtlands Farm near Banstead Wood in Surrey. 

Footage taken nearby recorded the sound of the explosion as it echoed around nearby properties.

A neighbour told MailOnline: ‘There was a huge explosion about 5.40am yesterday and I looked out my window and saw that there must have been 20 police cars and vans bumper to bumper lining the private road towards the farmhouse next door.

‘It was dawn so it was just getting light and I could make out police with guns, some were dressed all In black and some had a military style uniform on.  

‘They all had helmets on which appeared to have something attached like a head torch or infrared camera. I couldn’t see anyone being led out from the properties and I didn’t see any arrests.’

In new developments during the fast-moving investigation:

• Sources claim the suspect died in hospital, but was revived by medics and remains in a critical condition;
• Senior figures have marked National Police Memorial Day, just two days after Sgt Ratana was shot dead;
• Police have launched an informal review into the incident, looking at how he was ‘patted down’ and why officers found bullets, but not the revolver;
• Officers have called for a review of stop and search following the killing of the popular sergeant;
• Tributes from loved-ones, colleagues and politicians continued to pour in for the rugby-loving ‘big friendly bear’;
• The senior officer was planning to propose to Sue Bushby, his partner of six years, her mother has claimed;
• Sgt Ratana, known as Matt to family and friends, thought working in the custody suite was his ‘safest option’ as he neared the end of his lengthy police career.  

Drone footage captured by the BBC appears to show police searching the main farmhouse. Aerial images showed a number of unmarked police cars and patrol cars parked outside the building with officers working inside.

A blue police tent can be seen set up in the rear courtyard of the farmhouse.

Forensic officers have been entering the farm throughout the day, some carrying photographic equipment.

One local reported seeing a man matching that of the Croydon suspect on climbing over the front gate leading to the farm on Wednesday.

He said: ‘I thought it unusual that he was climbing over the gate, rather than opening it like most people would. His bike was on the other side. From what I’ve seen and read about the Croydon suspect, it did look like him.’ 

Two Surrey Police cars remain parked on the private farm road this morning while investigations continue.

Locals say the land had belonged to a local farmer and his wife up until three years ago when they sold to a developer and moved to France.

The developer had planned on building several modern flats on the land but went into receivership, according to nearby residents, and the land is now said to be owned by the bank.

The site was used as storage for ammunition during the Second World War.

The neighbour added: ‘There are three properties on the farm, I believe. There is the main farmhouse, a bungalow and a little flat.

‘There also used to be small warehouses, now demolished, in which explosives were stored during the war.

‘Whoever now owns the land must be renting out the existing properties because I’ve seen people coming and going from the farm over the last year.

‘One lad I used to see quite a bit there was light-skinned Asian or mixed race aged in his early 20s. He had glasses and quite long, thick curly hair.

‘I’d see him walking or riding his bike. I think I saw him fairly recently, within the last few weeks.

‘But there seemed to be something odd going on as there’d be a steady stream of white vans always going down the farm road late at night.

‘The gates would also be chained shut and concrete blocks placed in front of them to stop anyone coming in.’

Another neighbour said the land may be jointly owned by a developer and the bank.

He said: ‘The developer hit financial problems as it looked to build new homes on the farm and had to reapply for planning permission.

‘They want to build nine new homes that are going to cost about a million pound each.

‘From what I can gather, people are still able to rent rooms in the farmhouse at a cheap rate but they are told that they could be given a short notice period to leave when the building work starts.

‘There have been a small number of people renting rooms in the farmhouse over the last few months.’

The suspected killer of Sgt Matt Ratana is still fighting for his life under police guard, having been revived by medics after dying in hospital, while police search his family home. 

Officers have been at the home of the de Zoysa family since Friday, after 54-year-old Sergeant Matiu Ratana was killed in the early hours of the morning.

The property belongs to Channa de Zoysa and his wife Elizabeth, who live there with their sons John and 23-year-old Louis.

Neighbours told The Sun that Louis was ‘very awkward and kept himself to himself’.

Two police squad cars remain near the family home this morning, as officer begin their third day of investigations.

Yesterday MailOnline revealed the gunman who shot Ratana had been stopped by officers on the pavement outside a block of South London flats.

Sources told The Sun there was ‘zero chance’ he would able to speak to police yesterday, while the paper has also revealed the suspect, 23, died in hospital but was revived by medics.

A cordon remained at Anderson Heights, Norbury, yesterday, from where the suspect, 23, was taken to the Croydon Custody Centre before allegedly shooting Sergeant Ratana with his hands cuffed behind his back.

Two periods of silence have been held in tribute of Sgt Ratana today, at East Grinstead rugby club, as players and supporters remembered  the ‘truly remarkable fellow’ at 9am and again at 11am. 

Sgt Ratana, who was head coach at the club, was described by friend and club vice-chair Matt Marriott as a ‘father figure’ to many of the players.

He told BBC Breakfast: ‘I’ve actually never met anybody quite like Matt, he must have been an incredible policeman. His attention to detail and his strive for perfection, his work ethic, just blew all of us away.’

He added: ‘He wasn’t just a coach to the players. He was a role model, a mentor, and often actually a father figure. We’re going to mourn him as a family member. He’s left a big hole, to be honest.’ 

He said people will be coming ‘from all over the country, I believe, to pay their respects’. 

Earlier today Met Police Commissioner Cressida Dick laid a wreath at the National Police Memorial, saying Sgt Ratana was ‘a really rounded character’ and that he would be ‘sorely missed’ by colleagues and members of the sporting community.

‘He was a truly great sportsman and a leader in sport. Sport of course takes you into wider worlds,’ she said.

‘He was a proud Kiwi… and played sport all over the place.

‘Those worlds, the sporting world and the London communities world – perhaps I don’t know quite so much about that – but as a police officer, so many people knew how good he was and he’ll be sorely, sorely missed.’ 

A neighbour of the de Zoysas, a Roman Catholic, said: ‘I know the father is Sri Lankan and the mother is British. She works as an interpreter.

‘They have three boys. The police are there constantly. We don’t know what for but I always see police cars being called. What goes on within their four walls I don’t know as they tend to keep to themselves.

‘The police have been outside the address since [Friday] morning. All we know is that it’s connected to the incident in Croydon.’

Another neighbour said of a previous incident: ‘I saw their Louis being stopped and search by the police.’

Footage captured in the early hours of Friday shows the suspect – who remains in critical condition – walking on the London Road in the direction of Streatham when he was stopped by a squad car just before 1.30am outside the five-storey apartment as unsuspecting motorists drove past.

The footage shows the patrol car does not have its blue lights flashing, and the suspect appears compliant as he is engaged by officers. 

At 1.44am a rapid response vehicle arrived, followed two minutes later by a police van. The suspect is seen being taken into the van at 1.47am. 

A minute later another car arrived and blocks the road, while three officers search nearby grounds. 

At 1.50am the police van holding the suspect leaves the scene and heads towards Croydon Custody Centre.

It is unclear whether he was searched or handcuffed at the scene, but he did not appear to be behaving aggressively and seemed to cooperate with the officers. 

Officers were manning the tower block yesterday afternoon, where a blue Peugeot and silver Vauxhall Corsa were seen inside the cordon and a stairwell next to the apartments has been taped off.

The force confirmed a gun was recovered from the custody suite where Mr Ratana was shot and two addresses – one in Norbury, London, and another on Park Road, Banstead, in Surrey – were at the centre of a major police investigation.  

Scotland Yard is under mounting pressure to explain how the suspect managed to apparently conceal the revolver down his trousers and then open fire on the veteran officer from New Zealand while in handcuffs.

Sources said officers failed to find the suspect’s gun as it had been well hidden and would have been recovered only with an intimate strip search and body cavity check.

A police spokesman said: ‘We have recovered a gun from custody where Matt was shot, which is being forensically examined.

‘We have CCTV of what happened in custody and body-worn video from police officers which is being carefully reviewed by investigators, and will be considered alongside the officer’s accounts.

‘The suspect remains in hospital in a critical condition and due to his state we are not able to speak to him.

‘Our murder investigation will seek to establish why Matt was shot. One of my priorities is to ensure any future criminal prosecution is not jeopardised. I know this is important to the public too and I’d ask for everyone not to speculate.’

Police have launched an informal review into the incident, looking at how he was ‘patted down’ and why officers found bullets, but not the revolver.

A Met source told the Times: ‘The police officers on the ground in Croydon thought he was secured when they put handcuffs on him, which were placed behind his back. He would never have been placed in a van and taken to the police station had they known he was still armed.

‘But the gun was incredibly well hidden around his rear. This was a one-in-a-million fluke. But that one in a million has cost the life of one of our officers.’

Sergeant Ratana was allegedly shot five times in the chest at point-blank range as he prepared to search the handcuffed suspect, who had been detained for possession of ammunition and Class B drugs with intent to supply, with a metal detector in a Covid screening cell.

Tributes from loved-ones, colleagues and politicians continue to pour in for the rugby-loving ‘big friendly bear’, who was months away from retirement. 

Sergeant Ratana was a coach at East Grinstead Rugby Football Club and leaves behind a grown-up son and partner Sue Bushby who he lived with in Goring, Sussex. 

Ms Bushby’s mother Penelope yesterday said her daughter was with Sergeant Ratana for ‘six wonderful years’ and that he was planning to propose.

Talking exclusively to Mail Online, she revealed that Sue had also lost her father Roy earlier this year and that Sergeant Ratana had been a pillar of strength. 

A keen rugby player, he was head coach of East Grinstead Rugby Club, where he was viewed as an ‘inspiring and much-loved figure’.

Metropolitan Police deputy assistant commissioner Stuart Cundy said Sgt Ratana’s death had marked a ‘dark and sad day for the police family’.

He added: ‘Everyone working on this investigation, from the forensic specialists to the local officers holding the cordons, does so with a heavy heart but a determination to find justice for our colleague and his family.’

He said police are ‘painstakingly’ searching four crime scenes in connection with the killing, including the custody suite where the incident unfolded at about 2.15am on Friday.

The gunman, who was arrested by a special constable on patrol with two regular officers, is in critical condition with a gunshot wound to the neck from his own weapon.

Scotland Yard has launched a probe into the background of the suspect, who was deemed a ‘potential terror threat’ and had been referred to the Prevent programme which aims to stop vulnerable people being drawn into extremism, it has been claimed.

The suspect was arrested on suspicion of possessing ammunition and Class B drugs with intent to supply. Cannabis resin is understood to have been found on his person. 

They searched the suspect after he was seen behaving strangely before handcuffing him and driving him to the police station. 

Sergeant Ratana – who has a 26-year-old son from a previous relationship – was about to search the handcuffed suspect with a metal detector in a Covid screening cell when the man produced a revolver that he had stuffed down his trousers.

The 23-year-old fired the gun with his hands still handcuffed behind his back, allegedly hitting the veteran officer several times in the heart at point-blank range.

In the ensuing chaos the attacker’s weapon went off again, wounding him in his neck, but he remains alive in a critical condition. The suspect is believed to be autistic and of Sri Lankan origin, according to the Times.

Sergeant Ratana was airlifted to hospital after desperate medics performed open heart surgery on him in the custody centre, The Sun reports. 

Sergeant Ratana, who’s job was to look after the care and welfare of detained people, died in hospital.

The paper has also claimed managed to revive the suspect, after he died in hospital. 

Originally from Hawke’s Bay, he came to the UK in 1989 and became a protection officer for Princess Diana, the Queen Mother and former-Prime Minister John Major, The Mirror reports.

And, in 1992, the hero officer found himself less than 330 yards away from an IRA car bomb which was exploding outside 10 Downing Street.

Friend Amanda Tessier, a community nurse, whose sister Sue Bushby has been in a relationship with the officer for six years, said: ‘He was a great big friendly bear of a man, one of the loveliest men you could meet.’

Father-of-one Sergeant Ratana has been described by his fellow officers as a ‘real gentleman’ and ‘one of the best’ while Met Police commissioner Cressida Dick said he was known as a ‘big guy’ with a ‘big heart’.

Last night New Zealand’s Prime Minister Jacinda Ardern said it was ‘incredibly sad news’ one of her country’s former police officers had died.

Mrs Tessier added: ‘He was absolutely dedicated to being a police officer and had almost 30 years of service. He knew the dangers of being a police officer in London and he had spoken about them but for him it was all part of the job. It was something he was trained in and used to.

‘He was such a lovely guy. He was a big friendly guy. He liked to keep fit and loved his rugby but he also liked a burger or two. We simply can’t believe it. How did someone have a gun in the police station?

‘I’m sure there is going to be a huge investigation by the Met but it doesn’t seem right at all.’  

Mrs Tessier said her sister was devastated by the news and was being comforted by friends.

She said: ‘They had been together for about four years. She got a knock on the door in the morning. It’s just devastating. We can’t believe it. He was the life and soul, a real fun-loving guy who was totally committed to doing his job.’

She said he was a passionate rugby fan who coached players. ‘They’ll be devastated by this. He coached the juniors as well,’ she said, breaking down in tears. ‘It’s just awful.’   

Police protocol decrees this cannot be done by the roadside and requires authorisation from a sergeant at a custody centre. 

The detained man was in a Covid screening cell, which is part of custody procedure during the pandemic, when he launched the attack. Two officers pounced on the suspect in a bid to stop him.

It came as Sergeant Ratana opened the cell door to search him with a metal detector. 

The force have launched a investigation, focusing on why the gun was not found when he was searched. 

Mick Neville – a former Detective Chief Inspector – told The Sun that ‘criminals have been known to strap guns to their upper leg or even push the barrel into intimate areas leaving just the hand grip showing. Even the most experienced officer could miss this.

‘The sergeant could have been more exposed to danger due to Covid-19 procedures.’ 

Sgt Ratana, known as Matt to family and friends, thought working in the custody suite was his ‘safest option’ as he neared the end of his lengthy police career, friend Neil Donohue said.

Mr Donohue told BBC Breakfast: ‘He thought it was his safest option just to see him through to his retirement and no-one expected this to happen – certainly not within the police cells.’ 

Sergeant Ratana is the grandson of Iriaka Ratana, the first Maori woman MP, and cousin of New Zealand Labour MP Adrian Rurawhe, who told the NZ Herald: ‘Everyone is really devastated to hear the news he has passed.

‘He was really proud to be a police officer, he was also really proud to be Maori from New Zealand.’

He added to Sky News: ‘It’s really sad that he’s gone too soon, but also the nature of how he’s gone. The whole family’s feeling devastated.’  

A 1996 magazine printed quotes from the sergeant in which he said: ‘I’ve got this photo of me as a kid wearing a police helmet.

‘One of my uncles sent it over. I don’t remember growing up wanting to be a policeman. But now that I am I wouldn’t change it for anything.’ 

London Mayor Sadiq Khan said he visited the family to pass on his condolences. Other tributes on social media said ‘what a waste’, ‘you will be missed my friend’, ‘so sad, what a lovely man’ and ‘sleep well Maui’. 

Community leader Donna Murray-Turner described the officer shot dead this morning as ‘warm, intelligent and funny’.

She told MailOnline: ‘He was a good person. He helped me in setting up stop and search workshops. I will work with anyone who wants to make change and he was one of those people. 

‘I would just want his family to know he was loved by them and he was loved by members of the community.’

A friend who lives on the same street as the sergeant said: ‘Matt was a lovely, lovely man. We are in shock.

‘He was softly spoken and very kind. A wonderful neighbour. And he was so much into his rugby. We learned this morning about what had happened. Very shocking news.’

Glenn and Debbie Stobart lived next door to Sergeant Ratana in Coulsdon, south London, for a number of years before he moved to Worthing.

Mrs Stobart, a close friend, said: ‘He was a fantastic man. He was always helping others. If you were concerned about anything he would answer your concerns.

‘He was so caring, funny, everyone knew him. He was a really big character.

‘The first day he moved to the area he came and knocked on the door and introduced himself and everyone got to know him from then. He absolutely loved his job and being a police officer. He was so proud to serve the community.

‘He was looking forward to retirement next year but was unsure what he was going to do with all that spare time, so he threw himself into the rugby even more. He loved helping the kids out and it gave him a real purpose.’ 

Holding back tears as she discussed his killer, she added: ‘They should throw away the key.

‘How could someone get into a police station with a gun? It beggars belief.’    

Sergeant Ratana is the tenth police officer to have been killed in the line of duty in the past decade, with the last being Andrew Harper in Berkshire in August 2019. 

PC Harper’s widow Lissie Harper said that it was ‘utterly devastating’, adding: ‘What is happening to our world?’ 

Friday’s incident marks the first time a UK police officer has been shot dead on duty in eight years after Dale Cregan killed Greater Manchester Police officers Nicola Hughes and Fiona Bone in September 2012. 

Scotland Yard have not yet confirmed if he was on the radar of counter-terrorism police following the claims made by BBC News.

However, it is believed that he had been referred to the Prevent programme. The programme is a government-led multi-agency scheme, involving the Home Office, counter-terrorism police and other authorities, which aims to prevent vulnerable people being drawn into extremism. 

He was identified over possible links to Right-wing and Islamic extremism but nothing was found to warrant a counter-terrorism investigation.

Shocked and tearful colleagues laid flowers throughout the day, with 11 police officers marching toward the custody centre at one point to leave floral tributes with a poem. 

Prime Minister Boris Johnson said: ‘My deepest condolences go to the family, friends and colleagues of the police officer who was killed in Croydon last night. We owe a huge debt to those who risk their own lives to keep us safe.’

Scotland Yard said no police firearms were discharged, and they were informing the officer’s relatives and supporting them with specialist officers.

A number of policing colleagues changed their social media profile pictures to black, with a blue line, as a mark of respect to the officer, who had been in the police force for nearly 30 years 

His former girlfriend Claudia Lynn, who lived with the officer for six years, said he had come over from New Zealand and forged a career in the police. She said they split up four years ago after meeting in 2010. She is a former special constable.

She said: ‘We moved down here together from London where we were living at the time. I wasn’t in touch with him anymore but I had seen him around on the odd occasion.’

Met Police officer Stuart James tweeted: ‘This morning my team and I responded to the worst possible radio transmission from custody, words and scenes I shall never forget.

‘The unimaginable happened to our police family. We have lost not only a good skipper but also a real gentleman. One of the best. RIP brother.’

Community police officer Jacqueline Kufuor burst into tears after laying flowers outside the centre in tribute to her colleague. She said that the deceased officer was ‘a lovely guy’ and ‘the nicest man I have ever met’. 

She said: ‘You never expect this to happen when you go to work. For him to have been in custody and for this to have happened, it is just so sad.’ 

She said: ‘He was a very lovely man. He was such a nice man. When he sees you, he would just stand and talk to you. He would ask you about your job and how your are coping and how you are doing out there. So when I ever had issues, I would just talk to him.’

Neil John-Baptiste, 44, a recovery driver of Thornton Heath in south London, drove down to the centre to lay flowers. He said: ‘I just think that a police officer has lost his life in the course of doing his duty.

‘I think it is really disheartening what happened here. These are just flowers but it is a mark of respect. Things have got to change.’

Dame Cressida said Sgt Ratana was known as a ‘big guy’ with a ‘big heart’. 

She said: ‘A lovely man, respected by his colleagues, officers, staff and of course by members of the public, including, I may say, suspects arrested or dealt with in custody.

‘He was very well known locally and he will be remembered so fondly in Croydon and missed there, as well as in the Met and in the rugby world.’

Dame Cressida said he leaves behind a partner and an adult son from a previous relationship.

She said he joined the Met in 1991, adding: ‘He was a talented police officer, captain of his recruits training class.’ 

He first worked in Charring Cross before working in Hillingdon and Hackney. 

She urged the public not to speculate about his death, saying: ‘I do understand that there is great concern about how this happened, how this could have happened.

‘I want to reassure everyone the facts will be established, we owe that to Matt. We owe that to his family and of course we owe that to other police officers.

‘But we do need to give the investigators the space to do their job and I must say that speculation at this time is unhelpful and may even harm our efforts.’

Dame Cressida’s New Zealand counterpart Andrew Coster wrote on Twitter: ‘New Zealand Police acknowledges the death of serving Met Police officer, and former New Zealand Police officer, Sergeant Matiu Ratana, known as Matt.

‘Sergeant Ratana was already an experienced officer in the UK when he joined New Zealand Police as part of the first British High Commission Wing, Wing 212, in 2003. He served in Auckland City and Counties Manukau until 2008, before returning to the UK.

‘As my counterpart Commissioner Cressida Dick of the Metropolitan Police has expressed this morning, policing is a family. While Sergeant Ratana spent most of his career in the UK, anyone who serves here will always be a part of our New Zealand Police whānau.

‘We send our condolences to his friends and family here and abroad, and his colleagues in the Metropolitan Police and across the UK who will be deeply feeling this loss.’

New Zealand’s PM Ms Ardern said: ‘Incredibly sad to hear news this morning that a Metropolitan Police officer killed in the UK was Matiu Ratana, a former New Zealand Police officer.

‘Sergeant Ratana worked in Auckland City and Counties Manukau until 2008, before returning to the UK. To all Matiu’s whanau across the world, we share your sorrow and have all our condolences.’

John Davies, a former colleague of Sgt Ratana, said he was a ‘truly remarkable, strong and unique individual’.

Mr Davies, 58, worked with Sgt Ratana for the Metropolitan Police from 2002 to 2004.

He said: ‘Matt and myself were both police officers on Hillingdon Borough, west London, and worked closely together for those years.

‘I’d just like to say that he was a truly remarkable, strong and unique individual. He would have left an impression on all those he came into contact with.

‘He was a great guy and will be sorely missed.’ He described Sgt Ratana as a ‘proud Maori’.

Community police officer Jacqueline Kufuor said: ‘Sgt Ratana was a lovely guy’ and ‘the nicest man I have ever met’.

She said: ‘He was a very lovely man. He was such a nice man. When he sees you, he would just stand and talk to you.

‘He would ask you about your job and how you’re coping and how you are doing out there. So when I ever had issues, I would just talk to him.’

A grieving friend said Sergeant Ratana left rugby training just hours before he was murdered. He described the victim as a ‘leader amongst men.’  

Paul, 27, who did not provide his last name, said the officer played as a prop for East Grinstead Rugby Club in Sussex and had been head coach for the last four years.

Speaking outside the detention centre on Friday, wearing a training top of the West Sussex team, he said his teammate was a ‘giant of a man’ who turned the side into a winning machine.

Paul, who works in recruitment, said: ‘He was coaching the colts, then was head coach when it became available.

‘He was a leader amongst men, the team started winning nearly every game, it was definitely because of him, his never say die attitude to keep battling, that was just who he was and he instilled that in the team.

‘He played as a prop, he was a giant of a man.’

Speaking about his teammate, he became emotional before adding: ‘We’re all just devastated, it’s all quite overwhelming, it’s hard to believe what’s happened.

‘He was close to retiring from the force. It’s sad that the force are put in that position, they are just men and women doing their jobs. It’s unfortunate because they’re on the front line, it’s bad, but no one deserves that.

‘I saw him last night, we trained with the team and he left training to come to his night shift.’

After moving to Worthing in West Sussex six years ago, Sergeant Ratana took over as head coach of the club, helping youngsters develop their game.

He had been an outstanding player himself, even turning out for now professional side London Irish among a host of other London clubs. He had learnt the game at Palmerston North Boys’ High School, which has produced a number of All Blacks.

England Rugby’s Twitter account read: ‘Our thoughts and those of the entire rugby family are with the family and friends of Sergeant Matt Ratana.  Head coach at East Grinstead Rugby who gave so much to our sport.’

Three years after arriving in Britain he married Teresa Conway in Slough and the couple had a son, Luke, the following year.

They later separated and his ex-wife and son are thought to have emigrated to Australia. Friends said Sergeant Ratana had remained very close to Luke.

Sergeant Ratana sent a WhatsApp message to his players at East Grinstead rugby team at 1.34am this morning which read ‘good session tonight team’, reports suggest. He was shot less than an hour later.

A friend told the BBC: ‘A few years ago I was experiencing financial problems. He came in one day and gave me 200 quid out of the blue, I said ‘no no, I can’t accept that’- and gave it back to him. But the next day he wired it into my account. That’s the sort of guy he was.’

Scotland Yard said it had referred the incident to the Independent Office for Police Conduct (IOPC) which will lead an independent investigation. 

Speaking at the Home Office, Home Secretary Priti Patel said: ‘I’m deeply shocked and saddened by the tragic killing of the officer in Croydon overnight.

‘All our thoughts are with the officer’s family, friends and colleagues across the Metropolitan Police force, but also policing family across the country.

‘This is a sad day for our country as once again we see the tragic killing of a police officer in the line of duty as they’re trying to protect us and keep us safe.

‘Later on I’ll be meeting with the Metropolitan Police Commissioner to discuss the investigation that is currently taking place, and of course the Metropolitan Police Service now need the time and the space to get on with the inquiry that now needs to follow.’

IOPC Regional Director Sal Naseem said: ‘A Metropolitan Police (MPS) officer has tragically died in the line of duty and we extend our deepest condolences to his family, friends and colleagues and all of those affected by this shocking incident. The MPS is conducting a murder investigation into the officer’s death.

‘A 23 year old man remains in a critical condition in hospital. When a member of the public dies or is seriously injured while in police custody the Independent Office for Police Conduct’s (IOPC) role is to independently investigate the circumstances surrounding the incident.

‘We began our investigation in the early hours of Friday 25 September and our investigators have been at Croydon Custody Centre in Windmill Road, south London, gathering evidence. Our investigators are also in the area where the man was detained gathering relevant CCTV evidence.

‘We will be looking at all of the police contact with the man from the time he was detained leading up to the tragic incident. It is understandable there will be speculation and questions asked about how this incident unfolded and we are seeking answers. It is important that we independently establish the sequence of events.

‘Given the clear trauma suffered by those officers who were present during the incident, they have not yet provided their initial accounts. The work to obtain these will continue next week.

‘We have obtained CCTV from the custody centre and body worn video footage from the officers present. This will be reviewed and analysed over coming days.

‘What we have established is that the man was arrested for possession of Class B drugs with intent to supply and possession of ammunition. The man was handcuffed to the rear before being transported to Croydon Custody Suite in a police vehicle where he was escorted into the building. He remained handcuffed to the rear and seated in a holding area in the custody suite.

‘His handcuffs remained in place while officers prepared to search him using a metal detector. It is at the point that shots were fired resulting in the fatal injuries to the officer and critical injuries to the man. A non-police issue firearm, which appears to be a revolver has been recovered from the scene. Further ballistic work will be required.

‘The MPS is conducting a separate murder investigation into the death of its officer, and we are working to ensure our investigation does not impact its enquiries.’

Leroy Logan, a former Metropolitan Police superintendent, said there were a number of questions to be answered around the circumstances which led to the shooting of an officer at a police station.

He told BBC News: ‘The first thing you want to know is how did this happen?

‘How did that person come to be in the station whether it’s in the yard or the building itself and be able to produce a weapon, whether it’s on them at the time.

‘It depends on the calibre of the weapon, because obviously if it’s a small weapon and it can be easily in that person’s clothing, then obviously it brings another question on how thoroughly that person was searched, if at all.

‘Those are the things the department for professional standards will look at and the Independent Office for Police Conduct as well as the investigating officers who will have to look at this thing thoroughly.

‘Because there’s a lot of learning and obviously there’s a lot of pain for the family and friends and colleagues of that officer who has fallen in the line of duty.’

Speaking to BBC News, former Metropolitan Police superintendent Mr Logan said the procedure followed will depend on the circumstances in which police came into contact with a suspect.

He said: ‘It depends if that person was arrested outside the police station and has been transported in a vehicle. Invariably these officers will search that individual to make sure they haven’t got anything that can harm other people or themselves. 

‘Or try and hide any material whether it’s drugs or any sort of articles that they shouldn’t have.

‘That’s standard procedure and of course that’s for security reasons just in case they have got a weapon.

‘There are circumstances where someone might turn up at the custody suite area itself in the reception and are led straight through.

‘So not knowing all of the details, how this person got into the secure area of the station, whether it’s outside the building or in the yard or whatever, we just need to try and find out what’s happened because the details are very, very scant.’

Former Metropolian Police officer Dal Babu told LBC Radio: ‘A full body search, you’d expect that to take place at the time of the arrest.

‘The once they’re in the police station you might do a more thorough search, the custody officer may authorise a strip search, and that’s when you may find other weapons on individuals.

‘For safety purposes officers are advised to carry out the search at the time of the arrest.

‘Officers are having to travel some significant distances to take prisoners to custody suites.’

Steve Reed, Labour MP for Croydon North, said his thoughts were with the officer’s family and colleagues.

He tweeted: ‘All of us in Croydon are in shock at this heartbreaking tragic news.’

Mr Reed, 46, left a floral tribute at the scene with party chair Mohammed Islam, 46.

Mr Islam was ‘deeply touched’ by the incident as his son Shakz, 23, is waiting for his start date to become a police officer covering Westminster, Fulham and Chelsea.

He said: ‘This is why I am really really touched by what has happened. It’s very shocking and devastating news as I never thought something to this extent could happen in this day and age.

‘I really feel for the family. The bravery the emergency services show in protecting us is incredible. I know that my son will also show this courage and not be deterred by this awful event.’

His son Shakz Islam, 23, said: ‘When I heard an officer had been shot dead, I was absolutely shocked. My brother kept calling me to tell me someone had been killed a custody officer.

‘It’s absolutely appalling but does not put me off wanting to become an officer. If anything it makes me want to protect the public more and shows the career is worthwhile.’

Brother Zak Islam, 20, added: ‘It’s just such a surprise that it’s happened here. A custody station like this is supposed to keep people safe.

‘I just don’t get how the gun wasn’t found during a search before he was taken into the building. It may have prevented it from happening. I’ve grown up here my whole life and like living here.

‘It is a bit rough but crime seems to have seriously dropped since the police station was built around five years ago.’

Recovery driver Neil Garcia, 44, heard a helicopter circling overhead after he returned from work shortly after 1am. He added to the bunches of flowers left outside the custody centre.

Mr Garcia said: ‘It’s not a surprise to hear a helicopter round here late at night but I saw the devastating news this morning. I thought it was only right to lay flowers because a human being has lost their life at the end of the day.

‘There might be a lot of tension between young people and the police around here but it’s the same with many communities.

‘While I don’t know this officer, I know a lot of good people in the police who helped me turn my life around when I was younger so this has touched my heart.

‘These people are just doing their job out of love for the communities they serve and there’s no way something like this should happen to them.’

Meanwhile Labour leader Sir Keir Starmer tweeted: ‘Horrific to hear of a police officer being shot and killed in Croydon.

‘Our police put themselves in harm’s way every day to keep us safe. All my thoughts are with the officer’s family, friends and colleagues.’ 

London Mayor Sadiq Khan tweeted: ‘Devastated by this news. My heart goes out to the family of this brave officer, who has paid the ultimate price for helping to keep Londoners safe.

‘Tragic incidents like this are terrible reminders of the dangers our police officers face every single day.’

Justice Secretary Robert Buckland tweeted he was ‘shocked and saddened’ by the news.

He said: ‘My thoughts are with the officer’s loved ones, colleagues and the wider police community.’

A London Ambulance Service spokesman said: ‘We were called at 2.16am this morning to reports of an incident on Windmill Lane, Croydon.

‘We sent two ambulance crews, an incident response officer, an advanced paramedic and two medics in cars. We also dispatched a London’s Air Ambulance trauma team.  

‘Policing is a family and I join my colleagues across the country in mourning the senseless death of one of our own in the line of duty.’ 

Ken Marsh, chairman of the Metropolitan Police Federation, said: ‘The murder of a colleague on duty is utterly devastating news.

‘Officers across London are in shock and sick to their stomachs at the nature of his death. 

‘All our thoughts – and that of all our members – are with his family, friends and close colleagues at this time. We and all members of the police family across the country are all utterly heartbroken at this news.’

He added: ‘Officers put themselves in danger every day to protect the public.

‘Sadly, on very rare occasions officers make the ultimate sacrifice whilst fulfilling their role.

‘When that happens we will ensure their bravery and sacrifice is never forgotten.

‘Colleagues involved in the incident will have our full support for as long as is needed.’

IOPC regional director Sal Naseem said: ‘Our deepest sympathies go out to all those affected by this terrible event. 

‘We were notified by the MPS of the shooting incident at Croydon Custody Centre early this morning. 

‘We understand a police officer has since sadly died and a man is in a critical condition in hospital. 

‘A murder investigation by the force is under way.

‘Our investigators are at the scene and police post incident procedure to begin our independent enquiries.’  

Tributes for Sgt Ratana have poured in from friends and colleagues.

His local rugby club in East Grinstead gathered to remember him on Sunday morning, pausing in silence to reflect on the life of someone described by club bosses as an ‘inspiring and much-loved figure’.

He is the eighth police officer in the UK to be shot dead in the last 20 years.

Ex-policing minister Mike Penning said poor attitudes towards officers started with politicians, who he accused of ‘hampering and undermining normal police officers’.

‘This lack of respect comes from the top, for me. It filters down from senior management and our politicians,’ he wrote in The Sun.

‘Simply, they are not backing officers.’

Sunday’s service, led by the National Police Chaplain, the Rev Canon David Wilbraham, also featured pre-recorded messages from families who have lost loved ones.

The messages were filmed under lockdown restrictions, and candles will be lit in remembrance of the deceased officers in each of the UK nations.

Lissie Harper, wife of Pc Andrew Harper of Thames Valley Police, who died in August 2019 aged 28, will light the candle for England.

Rebecca Davies, daughter of Pc Terry Davies of Gwent Police, who died in August 1990 aged 34, will light the candle for Wales.

Louie Johnston, son of Reserve Constable David Johnston of the Royal Ulster Constabulary, who died in June 1997 aged 30, will light the candle for Northern Ireland.

Chief Constable Iain Livingstone will light a candle in Scotland.

A rendition of I Vow To Thee My Country by The British Police Symphony Orchestra has been put together after more than 60 musicians recorded contributions from their homes across the UK.

Prince Charles said officers have met the ‘invisible threat’ of coronavirus with ‘visible courage and commitment’ and provided a ‘calm reassurance that has been so essential to our communities day and night’.

Speaking directly to the bereaved and serving officers, he said: ‘I can only say to all the families, friends and colleagues of fallen officers – and to every serving officer throughout the United Kingdom – that you and your loved ones will always have a very special place in the heart of our nation.’

Earlier Met Police Commissioner Dame Cressida Dick, Mayor of London Sadiq Khan and Home Secretary Priti Patel laid wreaths at the National Police Memorial in central London as part of the commemorations.

All three stood for a minute of silence to remember officers who had lost their lives while on duty.

Meanwhile, Prime Minister Boris Johnson paid tribute to the fallen officers who ‘represent the very best of us’.

‘They laid down their lives to prevent us from coming to harm and we owe them a huge debt,’ he said.

‘The dedication and selflessness that they showed in serving their communities will never be forgotten.’

The Rev Wilbraham said he was ‘immensely proud’ that a solution had been found to allow the service to go ahead and that he stood ‘in virtual solidarity’ with the affected families.

‘Not being able to meet physically leaves a void, especially for those whose pain is lifelong,’ he said.

‘I am immensely proud that we pulled together to try to fill that void with our online service and I thank the families who contributed.

‘This is an honourable day and a poignant reminder of the dangerous nature of policing. We stand in virtual solidarity to pay our respects.’

John Apter, national chairman of the Police Federation of England and Wales, said: ‘Policing comes with a huge amount of risk and this is at the forefront of our minds, even more so following the devastating news on Friday when our colleague in the Metropolitan Police was killed.

‘National Police Memorial Day ensures that police officers who gave their all are never forgotten.

‘We must always remember them – their commitment and ultimate sacrifice to public service.

‘Every day police officers selflessly put themselves in harm’s way for the sake of others – I thank them, and I am proud to represent them.’

Sue Bushby’s sister Amanda Tessier, a community nurse, told The Sun: ‘He was a great big friendly bear of a man, one of the loveliest men you could meet.

‘He was absolutely dedicated to being a police officer and had almost 30 years of service.

‘He knew the dangers of being a police officer in London but for him it was all part of the job. ‘