Police Academy 4: Citizens on Patrol is a 1987 American comedy film. It is the fourth installment in the Police Academy franchise. It was released on April 3, 1987 and is the sequel to Police Academy 3: Back in Training. A group of Police Academy graduates are sent to train a group of newly recruited civilian officers. The original Police Academy cast reprise their roles in the film. Capt. Harris, not seen since the first installment, returns as the film's nemesis. In Police Academy 2 and 3, Capt. Mauser (played by Art Metrano) filled that role, but Metrano asked to be replaced for the remainder of the series after filming number 3. This was the last Police Academy film to feature Steve Guttenberg as Carey Mahoney. This film also stars a young David Spade in his feature film debut, as well as featuring a brief appearance from pro skateboarder Tony Hawk as Spade's double in a skateboarding scene. Despite the commercial success, the sequel was panned by film critics. Plot Commandant Eric Lassard decides the police force is overworked and understaffed, so he comes up with the idea of recruiting civilian volunteers to work side by side with his officers in a program called "Citizens On Patrol" (COP). Carey Mahoney and his friends Moses Hightower, Larvell Jones, Eugene Tackleberry, Zed, Sweetchuck, Laverne Hooks, and Debbie Callahan are in charge of training the civilians. The civilians include the enormous Tommy "House" Conklin (who Hightower used to babysit), gung-ho senior citizen Lois Feldman, Tackleberry's own father-in-law, and skateboarding delinquents Kyle and Arnie. The latter pair were caught by Capt. Harris, and the judge was about to throw the book at them until Mahoney speaks to the judge to let Arnie and Kyle join the COP program as alternative punishment. The judge agrees, and the boys are joined by their attorney, Butterworth. Believing "the concept of citizens doing police work is asinine", Harris is determined to see the COP program fail and take over Lassard's job at the academy. When Lassard leaves on an overseas conference, Harris, and his right-hand man Lt. Proctor, are put in charge of the academy and Harris immediately plots to make the COP volunteers quit and leave police work to officers. The volunteers, however, do well in their training. Mrs. Feldman excels in firing Tackleberry's .44 Magnum, and they bond amicably (she reminds him of his mother). In