accident

alarm

alert

alerting

ambulance

authority

background

blue

blur

cars

city

cops

crime

crowded

danger

defocus

defocused

downtown

driving

electrical

emergen

emergency

enforcement

equipment

evening

flashing

flickering

from

illuminated

light

lightbar

lights

loopable

night

occupation

officer

patrol

patrolling

people

police

rear

rescue

road

scene

services

sheriffs

shiny

siren

sirens

speed

squad

stationary

street

surveillance

traffic

vehicle

view

warning

with