Plot hole: In the scene at Jim and Diane's reception Karen Betts and Neil Greyling come in with photo evidence of Jim after the hit and run. Jim states that he was with Diane that night and Diane clarifies it. But Sylvia Hollanby says that he couldn't have been with Diane, because she was with her after her and Bobby's wedding anniversary night, comforting her. But that was the night that Michelle Dockley attacked Jim in her cell. The night that Jim did the hit and run, Jim left work early and Sylvia was left to do the night shift herself.
Plot hole: In series 5 episode 13 where Jim Fenner frames Karen Betts, the CCTV footage shows this to be July 2003. Yvonne Atkins is killed a few episodes later. In season 7 episode 10 it is said to the be the 1 year anniversary of Yvonne's death, placing this as sometime after July 2004, yet Jim Fenner's tombstone shows a death date of 12th July 2005. In series 7 episode 1 Tina O'Kane sets fire to a clothes shop and is sent to Larkhall, where in series 8 episode 7 it is said she has served 4 months on remand and set free. But in series 7 episode 11, Neil Grayling tells police that Jim Fenner has only been in the post for a few months. The time periods of all of these events cannot be reconciled.