And if I'm any judge, Belletier's was the work of big-time professionals.

6 seconds sound clip from the The Asphalt Jungle (1950) movie soundboard.

You can hear this line at 01:12:32 in the Blu-ray version of the movie.

Quote context

[...]

- Not much after the Belletier job was pulled.

- We figure there might be a connection.

- One of the heist guys was shot. We know that. There was blood on the floor. Maybe it was Brannom's.

- He could've died in the getaway car and the others dropped him in the river.

- Oh, no, no, no. Bob's a good deal of a roughneck, but he's no criminal.

- And if I'm any judge, Belletier's was the work of big-time professionals.

- Oh, no, no, gentlemen. Bob mixed up in any burglary. Why, that's inconceivable.

- I see. Oh, uh, one more thing, just for the record, of course.

- Could you give us an account of your whereabouts last night?

- Yes, I could. Why? Is it necessary?

[...]