Columbo, Season Five

Lt. Columbo:
A letter addressed to the Department of Immigration and Nationalization that identifies you as a war criminal means opportunity and motive. It's enough to convict for first degree murder.

Santini:
It's impossible. It's a trick and not a very good one.

Lt. Columbo:
A trick? No, that's the letter.

Santini:
Oh no, Lieutenant. No, you see, this letter was burned. [letter goes up in flames] So much for your letter.

Lt. Columbo:
[dramatically pulls another letter from his pocket] There's the letter! I hope you were watching carefully. That's my best trick. Of course, I don't have your style but I get pretty good results.