Akademik

a private detective employed by a merchant to stop pilferage

↑private detective, ↑PI, ↑private eye, ↑private investigator, ↑operative, ↑shamus, ↑sherlock

store detective UK US noun [countable] [singular store detective plural store detectives]

someone whose job is to stop people from stealing things from a shop

Thesaurus: private investigators_synonym police officers_hyponym

ˈstore detective [store detective] noun

a person employed by a large shop/store to watch customers and make sure they do not steal goods