Columbo, Season Five

Captain August:
Mr. Morgan is with the Protocol Department, Columbo. There's been a complaint lodged against you by the Suarian legation.

Kermit Morgan:
A complaint of police harassment by First Secretary Hassan Salah. The feeling expressed to me is you've been engaging in a personal vendetta.

Lt. Columbo:
Well, there's no vendetta involved here. Just trying to catch a man who murdered two Suarian nationals along with robbing the legation of $600,000.

Kermit Morgan:
Yes, I'm sure but you're working in delicate and apparently unfamiliar waters, Lieutenant. You can't push around diplomatic personnel the way you would common criminals in the street. It's in the best interest of our government if there are no further contacts between yourself and First Secretary Salah.

Lt. Columbo:
Well, that's all very well and good except for one thing.

Captain August:
What is that, Lieutenant?

Lt. Columbo:
He's the murderer.