Factual error: Any time FBI agents enter Mexico, they are always armed. Mexican law prohibits U.S. Agents from bringing weapons into Mexico.
The Mentalist (2008)
1 factual error in show generally
Starring: Robin Tunney, Simon Baker, Owain Yeoman, Tim Kang
Green Thumb - S6-E10
Character mistake: When Kim is trying to convince Lisbon to help the FBI on their case, she says Jane stopped the ten-year reign of a mass murderer. Red John was a serial killer, which, by the FBI's definition, is a criminal behavior distinctly different from mass murder; he may have had a large number of victims, but he killed them either one or a couple at a time, with a cooling-off period in between, not all at once.
Kimball Cho: What do you need?
Patrick Jane: Backup.
Kimball Cho: I don't like it when you say you need backup and nothing's happened yet.
Red-Handed - S1-E6
Trivia: In this episode Andrea Parker plays Ann Meier, mother of Jessica Meier-Cardeira (Maite Schwartz). In real life, Parker is only nine years older than Schwartz.