The footage obtained by the Daily Mirror reveals how, after beheading the soldier, they hatched a plot to ambush and murder the first police officers to come to his aid. The brave WPC first on the scene at the Woolwich beheading comes within inches of death, a dramatic Daily Mirror video shows.
The driver, unable to draw her firearm, is saved by a male colleague in the back who fires his machine-gun through his window at a suspect who is charging at her.
The callous Islamic extremists had lured police to the scene by dragging the body of the murdered fusilier -- named yesterday as Lee Rigby, 25 -- into the middle of the road.
When they see the first police car arrive, the pair split up.
Blade-wielding Michael Adebolajo, 28, runs at officers head-on and his accomplice, named locally as 22-year-old Michael Oluwatobi Adebowale, advances alongside, aiming his gun at them.
The film of the 10 seconds of terror shows how Adebolajo got within two feet of the WPC who was driving the armed response BMW X5.
As he is sent sprawling to the ground by the force of the two shots, two officers jump out to cover him.
They appear not to see Adebowale aiming a handgun at them.
But a third SO19 marksman from the specialist Trojan unit spots him and he is brought to the ground as six more shots ring out in the suburban South East London street.