The BBC have now broadcast the pictures of the man being arrested by police armed with sub-machine guns, near Downing Street, taken by the camera team inside the Downing Street security gates, who normally provide commentary with the Number 10 Downing Street Door in their background shots.
They also have broadcast pictures of the arrest from Whitehall, on the Ministry of Defence side of the road.
The man did not appear to be armed, but does have black hair and a tanned complexion (no beard), which may just be enough to make you into a suspect these days.