investigator
noun OPAL W
/ɪnˈvestɪɡeɪtə(r)/
/ɪnˈvestɪɡeɪtər/
- a person who examines a situation such as an accident or a crime to find out the truth
- air safety investigators
- a private investigator (= a detective)
Oxford Collocations DictionaryInvestigator is used after these nouns:- arson
- police