The Police Officer is one of the four different paths in the game. You are allowed to choose this route on Night 1 whenVekk asks you what you're good at.
As a Police officer, your job is to patrol Blackgate's surroundings. You will partner up with one your colleagues. Currently, only Gruff, Jack, Rotis, Plox and Krane are available as a partner. Your partner depends on the radio station you chose while driving, at the game's very beginning. If you keep the country, you'll be assigned with Plox, choosing Soft Rock will make Gruff your partner, Techno goes for Krane, Pop goes for Jack, and random goes for Rotis.
Partnering up will obviously allow further relationship with said character.