agent
authority
auto
black
car
control
cop
crime
criminal
detective
drawing
emergency
equipment
equipments
flashlight
gas mask
guard
gun
handcuffs
helicopter
helmet
illustration
investigation
isolated
job
killer
law
man
megaphone
murder
object
officer
patrol
person
police
police car
police officer
policeman
policewoman
profession
protection
radio
safety
security
thief
traffic light
traffic signs
uniform
victim