When trouble comes, it'll be from hoodlums who know their business.

4 seconds sound clip from the The Big Heat (1953) movie soundboard.

You can hear this line at 01:17:20.274 in the Blu-ray version of the movie.

Quote context

[...]

- You're doing fine, Mark. Go back downstairs.

- Sorry, mac.

- Yeah, it's... It's okay.

- Is Joyce all right?

- Sure. Marge has her inside.

- I got the boys over just in case. This is my brother-in-law. Bill Rutherford, Harry Shoenstein, Hank O'Connel.

- I guess civilian life hasn't slowed Mark down so much, huh?

- You kidding? It hasn't slowed him down at all.

- When trouble comes, it'll be from hoodlums who know their business.

- I'm afraid they won't be stopped by amateurs whose hearts happen to be in the right place.

- Do we look like the cast from some maypole dance?

- I've been places those creeps wouldn't go unless they rode in a 50-ton tank. I went in on foot with...

- The story of how you won the Medal of Honor or something.

[...]