Factual error: There is absolutely no way that Internal Affairs would have any authority or power to shut down an entire police force because of stolen drugs. As in the plot of the film, that type of decision would be decided by the city council on a vote and approved by the mayor. In any case, an extensive investigation would take place and the culprits would be arrested and prosecuted. No police force would be disbanded because of this absolutely fictional scenario.
Bad Boys (1995)
1 factual error
Directed by: Michael Bay
Starring: Will Smith, Martin Lawrence, Joe Pantoliano, Tchéky Karyo, Téa Leoni, Theresa Randle, Emmanuel Xuereb, Lisa Boyle, Michael Taliferro
Plot hole: Why was $100,000,000 worth of heroin sitting in the police vault all this time before the bad guys stole it? Wouldn't the DEA have taken possession of the drugs long before that?
Mike: Hellooo?
Marcus: We're your new neighbours.
Mike: Don't be alarmed, we're negros.
Trivia: Pretty much all of the dialog between Martin Lawrence and Will Smith was ad-libbed. The original script can be found here: http://www.imsdb.com/scripts/Bad-Boys.html, as Don Simpson and Jerry Buckheimer thought it would be better and more funny.