Corrected entry: The New York City Police Commissioner wears a four star rank insignia on his collars, badge and lapel pin. The actual insignia worn by the police commissioner is five stars.
Blue Bloods (2010)
1 corrected entry in show generally
Starring: Tom Selleck, Bridget Moynahan, Donnie Wahlberg, Len Cariou, Will Estes
The Uniform - S2-E11
Character mistake: While handcuffing an auxiliary officer in his apartment, there is a poster on the wall reading, "attention military personal..." Personal is misused. It should read "attention military personnel." (00:16:02)
Frank Reagan: I'm the PC. I know everything.
Trivia: In episode 2x22 "Mother's Day" the scene at the start was filmed at Brooklyn's American Veterans Memorial Pier, at Bay Ridge Ave aka 69th St, in Bay Ridge (off Belt Pkwy). The location and design of this pier is distinctive and also sentimental (particularly to older Brooklynites).
Question: What is the pin Mayor Dutton is wearing?
Answer: The Seal of the City of New York.
Correction: The Commissioner is not a sworn police officer and wears no insignia. The four stars worn by both Frank and Henry Reagan reference their final positions as sworn police officers prior to being appointed Commissioner. As such, they are entitled to wear their final rank of insignia, which in both cases, was Chief of the Department, which is four stars. If one or the other had been appointed Commissioner at the time they were a two star Assistant Chief, then two stars is what they would wear on their dress blues.