Episode #1.3 - S1-E3
Continuity mistake: Vera fires the gun several times, and later tells Justice Wargrave that the gun is empty, meaning that all the cartridges in it would be spent. When the judge loads his one bullet into the chamber, he does so in a gun where all five cartridge svisible are unspent.
Continuity mistake: When Allison gives Kurt his breakfast muffin (in a brown paper bag), it suddenly jumps from his left hand to his right hand between shots.
Continuity mistake: A henchman places a briefcase up-side down on a bench, opens the locks and starts to open the briefcase with the locks above the lid latches which are flipped open toward the floor. Instantly the briefcase is right-side up with the locks down and the lid latches up. (00:26:11)
Continuity mistake: The series doesn't seem sure what Sunny's rank is. He is described at various times both on screen and in the credits as both Detective Inspector and Detective Sergeant.
Revelations - S1-E10
Continuity mistake: When Piper reveals herself as the killer in the dock, you can see her dropping the mask and shortly after, removing her poncho and drop it on the floor as well. In the next shot from the side of the dock where you can see Piper and Emma face to face, the mask and the poncho are no longer on the floor. (00:32:20 - 00:33:10)
Continuity mistake: When Theresa and Ben walk down the road leaving town, and run into the woods from the Sheriff, Theresa's roller suitcase falls over on its 'back'. A minute later, when Ethan catches up to them, the suitcase is on its 'front'. (00:36:30 - 00:37:30)
Episode #1.2 - S1-E2
Continuity mistake: When the equivalent of Miss Debenham tells the Colonel that reaching the 12 people figure might be difficult, her hands and the secretarys are in a different position compared to the previous shot (hers are raised, his are crossed in a different pattern). (00:45:45)
Continuity mistake: After Naomi apologizes to Cyn for hitting him on the head, in the shot facing Naomi she reaches for Cyn's brandy with her right arm extended, but next shot it's her left arm extended. Then Naomi holds the brandy bottle with her left hand and removes the brandy's cap with her right, but in the next semi-closeup the bottle and cap have switched hands. (00:23:10)