long arm of the law

noun

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

The long arm of the law caught up with the fugitive.

意味（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.