Armed officers from other forces will be drafted in to support the Metropolitan Police as it faces a revolt over the murder charge following the death of Chris Kaba.
Soldiers are also on standby for armed police after scores of Metropolitan Police officers stood down from firearms duties following a murder charge against one of their colleagues.
The Met Police said “a number of officers have taken the decision to step back from armed duties while they consider their position” and “that number has increased over the past 48 hours”.
“To ensure that we can continue to keep the public safe and respond to any eventualities, from Saturday evening Met firearms officers will be supported by a limited number of armed officers from other UK forces,” the force added.
The crisis has emerged after a police officer was charged with murder over the shooting of 24-year-old Chris Kaba, who was killed in September last year in Streatham Hill, south London.
The officer accused of his murder is named only as NX121 after a district judge granted an anonymity order.
The force’s commissioner Sir Mark Rowley welcomed a review into the situation by Home Secretary Suella Braverman, to ensure armed officers “have the confidence to do their job”.
It was also backed by Prime Minister Rishi Sunak, who said armed officers need “clarity” about their legal powers.
Speaking to broadcasters during a visit to a community centre in Hertfordshire, Mr Sunak said armed officers are “making life or death decisions in a split-second to keep us safe” and “they deserve our gratitude for their bravery”.
He added: “Now it is important when they are using these legal powers that they do so with clarity, and they have certainty about what they are doing, especially given the lethality they are using.
“That is why the home secretary has asked her department to review the guidance that the officers are operating under to make sure it is robust and that it commands the confidence, not just of the officers, but of the public as well.
“Obviously it wouldn’t be right for me to speculate on ongoing cases, but that is what we are doing.”
‘London isn’t as safe as it was’
Speaking to Sky News, Tony Long, a former firearms officer with the Metropolitan Police, said London is a less safe city because of what’s happened, adding: “The only reason [Sir Mark Rowley is paying attention now] is because… they’ve withdrawn their services because of their concerns, and he’s left with a situation where he’s having to call in the military.
“He’s having to get much-lesser-trained-officers to step up to do jobs that they’re literally not trained to do, and at the same time, try and convince you all… it’s business as usual.
“It isn’t business as usual – the public in London are not as safe as they would be if armed response vehicles, officers and counter-terror specialist firearms officers were being allowed to do their job.
‘The public expect us to be help to the highest standards’
In his letter, Sir Mark suggested legal changes over the way self-defence is interpreted in police misconduct cases, the introduction of a criminal standard of proof for unlawful killing in inquests and inquiries, and changes to the threshold at which the Independent Office for Police Conduct (IOPC) can launch an investigation.
“It is essential that we have a system which commands the confidence of officers and the communities they serve,” he wrote.
“Of course, where wrongdoing takes place, the public expect us to be held to the highest standards.
“I have been clear on this in all areas of policing, and the use of force must be no exception.
“The system that judges officers’ actions should be rooted in integrity and decisions should be reached swiftly, competently and without fear or favour.
“A review is needed to address accountability mechanisms, including the policies and practices of the Independent Office for Police Conduct and the Crown Prosecution Service (CPS), ideally with a focus on the threshold for investigating police use of force and involvement in pursuits.”
This breaking news story is being updated, and more details will be published shortly.
Please refresh the page for the fullest version.
You can receive Breaking News alerts on a smartphone or tablet via the Sky News App. You can also follow @SkyNews on X or subscribe to our YouTube channel to keep up with the latest news.