access
accident
area
attention
background
banner
barrier
black
border
boundary
caution
construction
cop
cordon
crime
crime tape
criminal
danger
danger tape
disaster
do not cross
forbidden
horizontal
investigation
isolated
line
murder
order
perimeter
police
police tape
restricted
restriction
risk
safety
scene
security
sign
strip
stripe
symbol
tape
transparency
urban
violence
warning
warning tape
yellow
zone