search (esp. in criminal investigations); investigation; inquiry; enquiry
search (esp. for someone or something missing); manhunt; legally authorized search of a person, building, etc.
investigator (usu. of criminal cases)
First Investigation Division (of the Japanese police); division responsible for investigating homicide, robbery, kidnapping, arson, and sexual assault
(criminal) investigation headquarters
request for a police search; application to the police to search for a missing person
house search (e.g. by the police)
compulsory investigation; compulsory search
criminal investigation department; CID; criminal investigation section
special agent; special investigator
mobile investigation unit; MIU
forensic researcher; crime scene investigator
scientific crime detection; forensic investigation
special investigation department
right to investigate; investigatory power
sting operation; undercover investigation
Second Investigation Division (of the Japanese police); division responsible for investigating white-collar crimes like fraud, bribery, embezzlement and election violations
criminal investigation squad (team)
initial investigation (by police)
house search (e.g. by the police)
open criminal investigation
First Investigation Division (of the Japanese police); division responsible for investigating homicide, robbery, kidnapping, arson, and sexual assault
Federal Bureau of Investigation (US); FBI
investigating authorities; law enforcement authority
special investigation headquarter
mobile investigation unit (police); MIU
Third Investigation Division (of the Japanese police); division responsible for investigating theft, burglary, shoplifting, etc.
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-and-seizure warrant
Fourth Investigation Division (of the Japanese police); division responsible for investigating organized crime and the yakuza
search conducted with the consent of the party concerned
Federal Bureau of Investigation (USA); FBI
controlled delivery; arm's-length surveillance
undercover police; undercover cop
Second Investigation Division (of the Japanese police); division responsible for investigating white-collar crimes like fraud, bribery, embezzlement and election violations
search operations; search efforts
Third Investigation Division (of the Japanese police); division responsible for investigating theft, burglary, shoplifting, etc.
Special Rescue Exceedraft
Deep Submergence Systems Project; DSSP
Fourth Investigation Division (of the Japanese police); division responsible for investigating organized crime and the yakuza