police legwork; canvassing; house-to-house inquiry
Police investigation method where officers visit homes and businesses to question neighbors, bystanders, and local residents to gather information.
The police are continuing house-to-house inquiries to get clues about the case.
Witness information was gathered through canvassing.
General term for criminal investigation; 聞き込み捜査 specifically refers to the method of questioning local people.
Stakeout or surveillance; 聞き込み捜査 is active questioning, while 張り込み is covert observation.
Standard kanji spelling; high news frequency.
Variant with 聞込み instead of 聞き込み; less common but still used.
Compound of 聞き込み (listening and gathering information) + 捜査 (investigation).