In the second episode of the campaign, "Field Investigation", use the following combinations:
Police + Work = Police Work
Explore + Police Work = Arrest, Gun, Help, Patrol, Police Car
City + Explore = Lane, Street
Patrol + Street = Incident, Patrol
Explore + Incident = Auto Theft, Robbery
Auto Theft + Explore = Stolen Car
Police Car + Stolen Car = Pursuit, Stolen Car
Gun + Pursuit = Flat Tyre
Flat Tyre + Stolen Car = Crash
Crash + Explore = Robber, Wounded Biker
Wounded Biker + Help = Ambulance
This will then unlock the achievement.