How did Theresa May's security team handle her evacuation from Westminster?
"It may look chaotic. But this isn't Hollywood, it's not like you see on the films," Sky News police analyst Graham Wettone says.
Friday 24 March 2017 16:34, UK
Footage of the Prime Minister being escorted from Parliament following the Westminster terror attack has prompted questions about her security team.
Sky News police analyst Graham Wettone analysed the footage to see whether Theresa May was moved safely.
"The initial attack is coming from the Carriage Gates and the Prime Minister's car is in the other courtyard. That looks a short distance, but essentially it's quite some distance to cover.
"The attacker is dealt with very, very quickly. There are a number of armed protection officers literally round the corner.
"Then there's the courtyard, the safe and secure area where the Prime Minister's car was located while she was in Parliament in Prime Minister's Questions (PMQs).
"You see two protection officers coming out into the courtyard to secure it. They're in constant communication with the team that has the Prime Minister.
"Theresa May is being kept in a secure, safe location within the corridors.
"You see her come out with the protection team. She momentarily moves to the right - she saw one officer move to the right and she wasn't sure whether to follow him or stay with the protection team behind her.
"But you see the officer behind her, who's very close, has indicated she needs to come to the silver car, with the officer standing next to the door ready for her to get in.
"She's very relaxed. She even steps back from the door and waits for it to be opened for her to get in. No sign of panic, very calm, she has complete confidence and trust in her team.
"The officer has got an MP5 (gun) out, a powerful firearm to deal with any threat. He turns towards the Carriage Gate where the threat has come from.
"She's in the car, safe and secure. The officers get in the back-up car. Her car moves off, goes towards the exit gates but they haven't been cleared yet.
"It's common practice to back off and keep your exits open. The driver can either go the route he's been asked for, or if he gets different information he can go a different route.
"That looks like a very good, very well controlled removal of the Prime Minister from the estate.
"To the untrained eye it may look a bit chaotic. But this isn't Hollywood, it's not like you see on the films. They managed it in a controlled, calm manner."
A Parliamentary security review is now under way, with some MPs raising concerns about weak-points in the estate's perimeter.
Others have questioned unarmed officers being positioned in the first line of defence.
A security review was launched in October 2014 after the then-
The man - Dean Farley - was briefly arrested but released without charge. He said he just "brushed into someone while running".
The attack has also drawn comparison with US presidential security, which was put to the test during last year's campaign when a protester at a rally in Ohio jumped the barricade and tried to rush Donald Trump.
Four security men surrounded Mr Trump in seconds, and were praised by the now President for doing "a great job".