adult
background
baton
building
business
caucasian
control
crime
custodian
danger
defense
duty
employee
guard
guardian
guy
hand
handsome
indoors
job
male
man
occupation
people
person
portable
prevention
profession
protection
radio
safe
safeguard
safety
secure
security
service
staff
staircase
supervision
surveillance
talkie
transmitter
uniform
walkie
warden
watching
weapon
work
worker
young