非ひ常じょう線せん

noun

cordon; police line; barricade

A line or barrier set up by police or authorities to restrict access, often at crime scenes, accidents, or emergencies.

• 警けい察さつは事じ故こ現げん場ばに非ひ常じょう線せんを張はった。

  The police set up a cordon around the accident site.

• 非ひ常じょう線せんの内うち側がわには入いれません。

  You cannot go inside the police line.