criminal investigation squad (team)
police investigator; investigator
investigator (usu. of criminal cases)
(criminal) investigation headquarters
compulsory investigation; compulsory search
sting operation; undercover investigation
criminal investigation department; CID; criminal investigation section
scientific crime detection; forensic investigation
right to investigate; investigatory power
initial investigation (by police)
house search (e.g. by the police)
open criminal investigation
investigating authorities; law enforcement authority
chief investigator; head of the investigation; lead investigator
search for corroborative evidence
(police) legwork; house-to-house inquiry; canvassing; investigation carried out by questioning neighbours, bystanders, etc.
police investigation carried out in the immediate vicinity of a crime site
search conducted with the consent of the party concerned