Hill Valley Police
From Futurepedia, the Back to the Future Wiki
The Hill Valley Police Department was the primary police force in Hill Valley throughout its later years. Prior to the department's creation, the county sheriff handled matters of law enforcement.
In 1955, a Hill Valley policeman was seen walking a beat around Courthouse Square on Saturday morning, November 5. On the night of Saturday, November 12th, the officer investigated Doc Brown's "weather experiment" and asked whether he had a permit.
In 1985, Marty, using his skateboard, hitched a ride on the back of Hill Valley Police car #5253 as he left Courthouse Square to go home.
In 2015, the force included units that were comprised of females. Three police on motorcycles respond to the destruction of the foyer of the Courthouse Mall, and the female officers arrest Griff's gang, as well as later taking an unconscious Jennifer Jane Parker McFly back to her home in Hilldale.
In 1985A, the department was corrupt and had their hands on a military tank.
[edit] Behind the scenes
One of the scenes filmed for Back to the Future, but left on the cutting room floor, explained that the "permit" that Doc found in his wallet was actually a fifty dollar bill, which the police officer took in return for "looking the other way". The explanation (that there never was a permit) clears up a mystery for some viewers of the film, since, if Doc had obtained permission for setting electrical wire downtown, he could be blamed for the damage to the clock (and possibly even forced to pay, from his wealth, for its repair, which would then create a paradox).
Fortunately (and sometimes not), for Doc and Marty, Hill Valley's law enforcement appears to be ineffective regardless of the year. In 1885, Doc is not linked to the theft or destruction of Locomotive 131. In 1955, the police are not present when Biff drives his car recklessly through Courthouse Square, nor when Marty drives at 88 miles per hour toward the square, nor does Doc have any further problem in taking down the wiring for his experiment. In 2015, the police stand and watch while Griff's gang prepares to injure Marty, whose hoverboard is stranded over the pond at the Courthouse Mall; a response comes only after the front entrance is destroyed.
The department is at its nadir, however, on the weekend of October 26, 1985. Not only are Doc and Marty able to drive away from the Lone Pine Mall (with a van full of stolen plutonium) only minutes after gunfire, a high speed chase, and the crash of a van into a Fox Photo kiosk, they are also able to drive away the DeLorean time machine, which had been left by Marty at Courthouse Square, several yards away from the destroyed front entrance of the Assembly of Christ building. The destruction of the DeLorean on the railroad tracks goes uninvestigated on Sunday morning (although in Timeline 2, Marty's crash into a Rolls Royce apparently was prosecuted). The novelization does include mention of sirens approaching as Doc and Marty slip away from the mall.
