In a recent GBH case, CCTV of the scene in a nightclub appeared at first viewing to show clearly that the defendant had entered the room, and after a few seconds ran at the complainant and assaulted him.

The defendant insisted he was innocent, so Cathy McCulloch reviewed the footage frame-by-frame. This detailed analysis revealed that a third party had come from the back of the room, rushed past the defendant, and committed the assault.

The sequence was then enhanced to highlight the movements of complainant, defendant and assailant, and played in court to great effect during XX of the complainant. The jury returned a Not Guilty soon after they had requested the enhanced video to assist their deliberations.