water police

uncountable

The police department charged with patrolling harbours and waterways by boat.

Japanese Meaning

水上警察（ボート等を用いて港湾や水路をパトロールする警察部門）

The water police boarded the abandoned yacht at dawn after receiving reports of suspicious activity.

不審な行動の通報を受け、夜明けに水上警察が放置されたヨットに乗り込んだ。

Sense（1）

The police department charged with patrolling harbours and waterways by boat.