Continuity mistake: Early in the episode as she is on a fire escape looking to hide somewhere, the window she opens from the outside has two half panes of glass, but on the inside it only has one pane of glass.
The Secret Fate of All Life - S1-E5
Continuity mistake: The first time we see Detective Cohle being interviewed by the other two detectives, two of the beer cans on the table in front of him completely vanish between shots when he asks to see the rest of the discovery file.
The Bank Job - S3-E1
Plot hole: When Toby, McCluskey, and the others are looking at the bank's security camera footage, Toby asks to zoom in on Newman's tattoo, and then Toby asks if he can borrow someone's cell phone so he can ask Oz about the bank manager. It cuts to Oz at the hospital as his cell phone rings - when Oz picks up his cell he presses the button and promptly says, "Hey, Toby, what's up?" It's quite impossible for Oz to have known that it was Toby calling him if Toby was using someone else's cell, and he did not even have the chance to hear Toby's voice. Those telepathic abilities belong to Toby, not Oz.
Continuity mistake: In S:1 Ep.10 Maddie says she'll be 15 in a week. Season 2 picks up 6 months later. In S2ep5 Bosch uses Maddie's birthday to access a computer. Password is 01/10/01. This makes the date sometime in July of 2016. Then in S2ep6 George Irving is killed, and the end of watch broadcast lists his date of death as 7/24/2015. This error is reinforced in S2ep10 when they show a plaque being mounted to honor George.
Factual error: About 45 minutes into the episode, the girls' car stalls because the alternator's wire has been removed to cause this. For a car to stall like this, the battery has to be heavily drained which it would wind up being. When the killer comes up to the car, he tells her to try and start the car. She does and it turns over but doesn't start. The battery would never have enough amperage to turn over the car if it didn't have enough to keep the motor running.
Factual error: Chief Superintendent Hilton wears the ribbons of the General Service Medal (awarded for military service in a combat zone, most commonly in Northern Ireland) and the Police Long Service and Good Conduct Medal (awarded for twenty years' service), but not the Golden Jubilee Medal (awarded to all officers with five years' service in 2002), which he would also have. When he reappears in Series 4, he is wearing the Golden Jubilee Medal, Diamond Jubilee Medal (awarded in 2012) and Police Long Service and Good Conduct Medal, which would all be correct, but no longer has the General Service Medal.
Factual error: A 1973 Cadillac ambulance on the street is shown. The show is set in the 1960's.
Out of Time - S1-E3
Continuity mistake: When John meets Brooke and is examining her wrist, he ends up holding her hand palm up, but in the next shot her palm is facing down.
Is Lupin Burning... ?! - S1-E1
Other mistake: The logo of the evil organization, Scorpion, contains just a little misspelling. It's missing the R. (00:02:50)
Factual error: Myra's pet "chameleon" is some other type of lizard, not a chameleon.
Visible crew/equipment: While Rockford is driving with his father in the pickup Hammel's goon goes after Rocky again, and when they get to the docks Rockford shows Becker the window that was shot out. When Becker tells Rocky where to park the pickup, the shadow of the boom pole and mic is visible on the truck bed cover as Rocky drives off. (00:39:10)
Continuity mistake: In s02e09, "Enter the Dragon", when Father Jun shoots the second Irishman, he's holding the pistol with both hands. But in the next shot, he's back to holding it with one hand.
Continuity mistake: Tony Sparkle is seen defacing a picture of Judy Talent. He starts writing something beginning with T. The action cuts away for a moment, and then back again. The words on the picture are "SAD OLD BAT". (00:07:05)
Other mistake: When Cobb starts to chase the red Dodge, there's a shot of him passing between two vehicles (and very distinct buildings in the background). When Murphy picks up the chase, this same shot is reused, showing her passing between the same two vehicles.
Other mistake: Dr. Wade is the ME for Jefferson Parish. Most of the victims are found in Orleans Parish. Not her jurisdiction.
Episode #3.1 - S3-E1
Continuity mistake: DI Chandler calls a suspect "Daniel Wilkie." However when the interview is done he goes and talks to Ed, saying "you've just arrested Ben Wilkie."
Plot hole: When Nicky goes into prison in Mexico to give a criminal a shot of insulin, two errors are seen. 1) The needle and syringe are far too big for an insulin shot, which takes a one ml syringe and a small sub-cutaneous needle. 2) When we first see the syringe, there is a small amount of insulin in it, but it grows the more times we see it, until a large syringe is two-thirds full - insulin is enough in a one ml syringe.
Continuity mistake: As Banacek approaches the room in the farmhouse that has the cross, he has a cigar in his mouth. As he enters, the cigar is gone.
Episode #1.4 - S1-E4
Revealing mistake: The tabloid story with the plight of the Latimers just came out, and various characters are looking at it. In the bit when David Tennant tosses on the desk his copy of the Herald, the second paragraph of the second column goes "Sitting in the family home, surrounded by pictures and mementos of Danny" etc. It is the same text that was at the very beginning of the article when the store owner was looking at it. The newspaper is a prop with the same text in a loop. (00:35:00 - 00:36:30)