authority
automobile
bludgeon
cap
car
character design
chevron
concentration
cop
detection
drive
enforcement
equipment
fast
holding
justice
law
legal
limit
man
measure
officer
one
operation
outdoor
patrol
patrolman
peaked
penalty
people
person
police
policecar
policeman
punishment
radar
safety
sheriff
speed
standing
stop
stripe
ticket
traffic
transportation
trap
uniform
vehicle
working
writing