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Stupidity: S53/E33: Nick goes to the nightclub to speak with the owners about the whereabouts of his son. At the club, he runs into the investigating detective and sits down with the detective and the undercover cop investigating the club. In what police world would they be seen together at the place they are investigating? (00:07:15)

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Ron Simms - S2-E1

Factual error: Ron Simms (Mitch) has a gunshot wound in his right clavicle and scapula area; he manages to hold onto his handgun with his right hand and fire it freely. He continues to pursue his victim and fires his handgun with his right arm and hand without difficulty. While in reality, his right arm should be disabled and he shouldn't be able to use his right arm at all. (00:55:08)

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Continuity mistake: From last Season 14, episode 18 of Blue Bloods to this new spinoff series Boston Blue, Danny's hair is darker and thicker. He also lost his widow's peak.

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The Pirate Dinner - S2-E5

Factual error: Tommy meets his son at the Patch Cafe in Midland, Texas. After the meeting with his son, Tommy leaves the Patch and drives out onto the road at Kenwood Ave and Camp Bowie West Rd. There is a JD's Hamburgers restaurant in the background, but JD's Hamburgers at that street location is in Fort Worth, Texas, not Midland, Texas. (00:20:44)

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Character mistake: S7 E18: Ben Bailey asked the contestants. In 1999, 11 nations joined forces to create the Euro-Friendly EuroZone. Name eight of these 11 nations? They answered France, Germany, Spain, Italy, Netherlands, Portugal, Ireland, and Luxembourg. Ben then states the only ones you didn't say were Austria, Belgium, and Ireland, which was a mistake because the contestants said Ireland when answering the question. (00:06:24 - 00:16:53)

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Show generally

Character mistake: On the December 26, 2025, episode, Mark Consuelos is reading a passage about the most popular cities to move to in 2026. He mentions Vancouver, Washington, and said it's right near Vancouver, BC, which is misleading as the two cities are 308 miles away from each other. He should have said Portland, Oregon, as the cities are a bridge apart from each other. (00:06:20)

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Beaver's English Test - S5-E11

Character mistake: The English teacher, Mr. Blair, calls Gilbert "Mr. Harrison," but in earlier seasons and episodes, Gilbert's last name was established as Bates. (00:11:50)

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Desire Is All You Need - S5-E9

Continuity mistake: Sarah Atwood goes to the private security company. She's instructed to remove her jewellery and shoes, etc., and she is patted down. The company rep asked her to take a seat so she could check her feet. Although Sarah had removed her shoes as she moved to the chair, you can still hear her shoes on the floor as she moves. (00:30:03)

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Episode #1.5 - S1-E5

Continuity mistake: After Jess is taken by MI5, she gives Maddie her phone so she can view the video she shot. But, in Episode 4 (00:20:24), Sir George tosses Jess's telephone away and tells her to leave it. You might as well be carrying a tracking device, and they flee to another room while someone is shooting at them. (00:12:45)

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Episode #1.6 - S1-E6

Factual error: Mike, a CIA employee in the UK, is driving a black left-side drive SUV. However, US government employees in the UK performing official duties drive right-hand drive vehicles because UK law requires driving on the left, meaning the steering wheel must be on the right side of the car for safety and aligning with local traffic rules and vehicle configurations. (00:32:49)

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Wally's License - S6-E3

Continuity mistake: June is washing the dishes, and she doesn't have her wristwatch on. She hears Ward and Wally come home, and she goes to greet them. When she is shown again after walking from the kitchen to the foyer, she has her wristwatch on. (00:18:12 - 04:59:12)

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Kill the Messenger - S1-E2

Factual error: Kayce shoots the burnt guy out of mercy. The reservation police officer to cover for Kayce switched gun slides with Kayce. Both men were carrying Glock 19 handguns. On the Glock, the slide and the frame have serial numbers. Now their serial numbers don't match. To cover up the shooting, they would have to just switch gun barrels. (00:54:08)

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Teammates - S1-E2

Other mistake: Danny and Sean are at a Boston Red Sox game at Fenway Park, and Sean is wearing a Red Sox cap. There's no way a true New Yorker would ever wear a Red Sox cap in the company of his diehard New Yorker father. (00:56:28)

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Faith and Family - S1-E1

Continuity mistake: S1 E1 Faith and Family Facial recognition software was run against the suspect and it was a 72% match certainty, and the detectives state it. However, when questioning a suspect, they show the facial recognition document and it's a 99% match. (00:30:05 - 00:51:09)

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Fractures - S9-E8

Plot hole: Voight and Trudy are sitting in Voight's patrol vehicle discussing Roy Walton and Mark Irwin. They state that Intelligence killed Mark Irwin. After, Voight is shown checking his vehicle for a tracker and bug, which he finds on and in the vehicle. Based on Voight's experience, he should have checked the vehicle first. Also, the case should be done, as the FBI would have heard their conversation. (00:31:03 - 00:32:05)

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Hogan and the Lady Doctor - S2-E20

Factual error: The truck used to transport the female doctor to the laboratory, which is also driven by Hogan's team, is a right-hand drive vehicle. Germany used left-hand drive vehicles in WW2 because they drove on the right side of the road. (00:18:02 - 00:22:48)

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Burnside - S9-E5

Plot hole: Kevin is keeping his true identity that he is a police officer from Celeste while Intelligence is investigating a murder committed by one of her art students. Although Kevin is hiding his identity from her, he participated in the daylight search of her art studio looking for the murder weapon. How was Celeste not present during the search of her studio or not aware of the search happening without Kevin being revealed as a police officer? (00:54:04)

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The Real Deal - S10-E1

Other mistake: Erin is questioning a crime victim about who may have attacked her. Although she is asking about general physical characteristics to obtain a description, Erin specifically asks about the skin colour of the suspect. (00:02:13)

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Trust - S6-E11

Character mistake: A suspect is holding a knife over her head at Jay, who has her at gunpoint. Jay responds, "I'll be better when she drops the gun." Antonio enters the room and yells at Jay, "Are you good?" Jay responds, "I'll be better when she drops the gun." (00:46:46)

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Promise - S5-E3

Other mistake: Kim uses Gabriela Dawson to translate in Spanish to interview a witness. It could be a legal issue to use a native speaker, but it has been established in a few episodes that Kim is fluent in Spanish. (00:06:15)

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