agent
background
book
camera
composition
concept
crime
desk
detection
detective
device
different
espionage
examination
gun
ink
inspection
investigation
investigator
items
law
lens
magnifier
mystery
novel
object
officer
old
paper
pipe
police
private
retro
revolver
secret
service
sherlock
solving
spy
style
surveillance
table
technology
tobacco
vintage
wheel
wooden
work
workplace