(BBC) Just after 07:30 on 6 September last year, Skye Vokins was driving along the dual carriageway south of Wandsworth Roundabout, in London.
Scarcely believing her eyes, she saw a man land on the road beneath the rear axle of a delivery truck stopped in front of her car at a pedestrian crossing.
“I saw him drop to the ground and then do a kind of pencil roll,” Ms Vokins recalls.
The man stood up and walked slowly to the nearest pavement.
“I remember him flicking his fringe back and behaving very casually — as if nothing had happened.”
The man was Daniel Khalife, a former British Army soldier who was supposed to be in prison awaiting trial for spying for Iran.