noun, noun or participle which takes 'suru', transitive verb
strict search; sharp lookout
Used for rigorous inspections or surveillance, often in security, law enforcement, or military contexts. Can be used as a noun or with する as a transitive verb.
警察は駅で厳探を行った。
The police conducted a strict search at the station.
税関は密輸品を厳探している
Customs is keeping a sharp lookout for smuggled goods.