ローラー作さく戦せん

noun, noun or participle which takes 'suru'

thorough door-to-door campaign; area-wide search operation; comprehensive cleanup drive

Refers to a systematic, exhaustive operation that covers an entire area, like a steamroller. Used for police searches, community campaigns, or large-scale cleaning efforts.

• 警けい察さつは行方ゆくえ不ふ明めい者しゃを探さがすため、山やま全ぜん体たいでローラー作さく戦せんを行おこなった。

  The police conducted a thorough search operation across the entire mountain to find the missing person.