How is “crack down” used?

In The Godfather (1972), one line is: “Since McCluskey's killing, the police have cracked down on our operations.”

Which movie is “crack down” from?

The clip at the top of this page is from The Godfather (1972).

Since McCluskey's killing, the police have cracked down on our operations.

5 作品で登場 · 1 本目

to try harder to prevent an illegal activity and deal more severely with those who are caught doing it

5 本の映画に登場

オックスフォード映画の 100%
to try harder to prevent an illegal activity and deal more severely with those who are caught doing it
I've gotta crack down. I gotta sign it out?

定義：Oxford Advanced Learner's Dictionary 第 9 版