初しょ動どう捜そう査さ

noun

initial investigation (by police)

Refers to the first actions taken by police at a crime scene, such as securing the area, collecting evidence, and interviewing witnesses.

• 警けい察さつは初しょ動どう捜そう査さで重じゅう要ような証しょう拠こを集あつめた。

  The police gathered important evidence during the initial investigation.