捜査そうさ Common Noun Irregular Transitive Noun English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verbnouns which may take the genitive case particle 'no' search (esp. in criminal investigations);investigation;inquiry;enquiry 警察は事件の捜査をした。 The police looked into that incident.
犯罪捜査はんざいそうさ Noun English jmdict 1 noun (common) (futsuumeishi) criminal investigation 犯罪捜査への協力を要請された。 I was asked to cooperate with them for the criminal investigation.