long arm of the law

Noun

idiomatic

(idiomatic, almost always preceded by the) The influence or effectiveness of law enforcement institutions; law enforcement officers collectively.

Japanese Meaning

法律執行機関（警察など）の影響力や効力、すなわち、警察官全体が持つ法を実施する力。

Even miles away, the suspects couldn't escape the long arm of the law.

何マイル離れていても、容疑者たちは法執行機関の影響力から逃れることはできなかった。

Sense（1）

(idiomatic, almost always preceded by the) The influence or effectiveness of law enforcement institutions; law enforcement officers collectively.

It is my belief that I could have felt no greater dismay, if the long arm of the Law had laid its hold on me while he was speaking.