alarm
alert
ambulance
arm
attention
badge
bat
baton
cop
crime
danger
emblem
emergency
enforcement
equipment
flasher
flat
green
grey
guard
handle
icon
illustration
isolated
law
light
medical
metal
nightstick
officer
police
policeman
protection
rubber
safety
security
set
sheriff
shield
sign
star
stick
symbol
truncheon
weapon
white