Continuity mistake: Immediately after Abberline arrives at the yard where Annie Chapman's body is found, there is a shot of a photographer taking a picture of the scene from a nearby building. This shows Abberline's coat and hat already hanging from the fence. The shot changes, and we are then shown Abberline actually hanging them on the fence. After this, the position of the hat and coat vary in different shots, sometimes being very close together, other times with a noticeable gap between them.
Andrew Upton
28th Sep 2014