alert
arrest
assistance
attention
badge
cap
censorship
circle
control
cop
crime
danger
dangerous
department
forbidden
gesture
graphic
guard
hand
hat
icon
justice
law
legal
man
occupation
officer
palm
police
policeman
professional
protection
punishment
red
rules
safe
safety
security
sheriff
sign
signal
staff
stand
stop
surveillance
symbol
traffic
uniform
warning