英文關鍵字
agent
armed
arrest
authority
board
case
clues
confident
cool
cop
crime
criminal
criminology
danger
defense
department
detective
duty
enforcement
equipment
expert
getting
guard
gun
handsome
homicide
inspector
investigating
investigation
investigator
occupation
office
officer
order
patrol
pistol
police
policeman
prevention
professional
protect
raid
ready
recharging
scene
security
steep
surveillance
undercover
weapon