デカ長ちょう

noun

police sergeant; detective sergeant

Slang term for a police sergeant, specifically a detective sergeant (巡査部長). Used in informal contexts, often in police dramas or among colleagues.

See also: 巡査部長

• デカ長ちょうが現げん場ばに到とう着ちゃくした。

  The detective sergeant arrived at the scene.

• あのデカ長ちょうは厳きびしいことで有ゆう名めいだ。

  That police sergeant is famous for being strict.