Factual error: Both detective superintendents always wear uniform, which is only worn by detectives on very formal occasions if at all. Both also wear collar badges, which are not worn by either the Metropolitan Police or Thames Valley Police, the forces to which they belong.
Episode #2.6 - S2-E6
Continuity mistake: In the train platform scene where Cath stops Jason from jumping in front of the train, she asks him if he wants a cup of tea. He replies yes. It then cuts to a shot from the other side of the track showing Cath briskly walking away from Jason. However, in the next cut, we see Cath standing in front of Jason suggesting a diary date.
