Continuity mistake: Duke is wearing an extra shirt, and his hair is longer then it was, despite continuing the scene from the end of season 2.
The Trouble with Troubles - S4-E10
Continuity mistake: When Nathan answers his phone while checking the murder victim with Duke, he has it in his left hand. The camera angle changes and it's now in his right hand. (00:25:45)
Continuity mistake: When Dave and Vince arrive at the scene of the first Trouble, Dave is talking to Duke, and the camera changes from in front of Dave to just behind him. Dave wears glasses and in the front shot he has them on, but in the rear shot, they're missing. (00:09:10)
Continuity mistake: Almost at the end of the show when the reverend is walking uphill towards his wife (who he thought was dead) the van door was closing, then shut, the driver of the van was already in and shut her door. When they show the reverend's face, then the van again, people are still getting in the van, and the driver too.
The Trial of Audrey Parker - S1-E11
Continuity mistake: When Audrey is moving the books away from the hidden panel, she removes the last books and piles them to the side. Next shot she is removing the same books again. (00:27:00)
Continuity mistake: When the female cop tries to arrest Driscoll in the park, his Trouble kicks in and air pressure kills her. As it starts, we see blood flowing from her left ear, then it's gone, then it's there again, as the camera angle changes. (00:22:00)
Continuity mistake: When the taxi stops to pick up the woman, it stops with its hood in front of the door of the building beside it. She gets in and finds the driver dead, and jumps out. When the police are checking it, it has moved a full car length forward. The driver put it in park when he stopped, so it didn't roll forward. (00:11:30)