Police Simulator: Patrol Officers

I first got this when I started the patrol car shifts - drive around and pull people over for speeding, running red lights, not using turn signals, etc. Always do a drug / alcohol test on the drivers and arrest them if they are positive.

Responding to accidents is also a good way to get this, as usually there is at least one driver who tests positive.

Also making your shift time last longer makes this achievement easier to get, although you should be able to do this during a 15-20 minute shift.