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based on or relating to means of surgical operation
surgical
medical
currently effective or actively exerting influence
inoperative
(of e.g. a machine) performing or capable of performing
functional
running(a)
working(a)
effective; producing a desired effect
someone who can be employed as a detective to collect information
PI
private detective
private eye
private investigator
shamus
a person secretly employed in espionage for a government
intelligence agent
intelligence officer
secret agent