Which 1986 comedy sequel sees Mahoney and his fellow graduates assigned to the notoriously crime-ridden 16th Precinct, where they must whip the incompetent Captain Pete Lassard's precinct into shape?

The comedy sequel described, where Mahoney and his fellow Police Academy graduates are assigned to the notoriously crime-ridden 16th Precinct, is indeed "Police Academy 2: Their First Assignment." While the trivia question states 1986, the film was actually released in 1985, continuing the antics of the original misfit recruits as they embark on their first professional challenge. Their mission is to bring order to a precinct that has become the city's worst, plagued by a disruptive gang and general incompetence.

In this installment, the familiar faces of Officer Carey Mahoney (Steve Guttenberg), the sound-effect master Larvell Jones (Michael Winslow), the gentle giant Moses Hightower (Bubba Smith), and the gung-ho Eugene Tackleberry (David Graf) are thrust into real-world policing. They report to Captain Pete Lassard, played by Howard Hesseman, who is the brother of Commandant Eric Lassard from the first film. Captain Lassard is under immense pressure to improve his precinct's performance within 30 days, or risk losing his command, setting the stage for the chaotic and humorous attempts by the new officers to whip the district into shape.

"Police Academy 2: Their First Assignment" marked the first of many sequels in the popular franchise, building on the success of the 1984 original. The film expanded the world of the Police Academy, introducing new characters like the memorable gang leader Zed (Bobcat Goldthwait) and showcasing the graduates applying their unique, albeit unconventional, skills in a practical setting. Despite mixed critical reception, the movie continued the series' tradition of slapstick humor and became a commercial success, solidifying the Police Academy brand in comedic cinema.