英文關鍵字
accident
area
attention
background
barricade
barrier
black
blood
boundary
caution
cordon
crime
criminal
cross
csi
danger
dead
death
detective
enforcement
evidence
forbidden
forensic
investigation
isolated
law
line
murder
not
officer
plastic
police
restricted
ribbon
risk
safety
scene
security
sign
symbol
tape
urban
victim
violence
warning
weapons
white
work
yellow