We learned the language with the help of a native 'informant'.
The police were alerted to the plot by a paid 'informant'.
(..) We're looking for three white males, one of whom has sleeve tats on both arms. And how do you know that? I had an informant on the inside. He's been here for years. Watching, learning. Waiting. His code name? (..)2013 TvShow: Brooklyn Nine-Nine Title: Pilot Season: 1 Episode 1