Castle, Season 5

Gates:
Okay, I spoke with the Commissioner, and he's agreed to provide Vaughn with a protective detail.

Beckett:
Uh, great. I actually have a few uniforms that I'd like to recommend for duty.

Gates:
No. Mr. Vaughn has requested you.

Castle:
He what now?

Beckett:
Sir, I'm a homicide detective, not some bodyguard.

Gates:
Trust me, I know. But this comes directly from the Commissioner.

Castle:
Then why doesn't Vaughn just hire a private army? He can afford that.

Gates:
I don't know why, Mr. Castle. I just know what my orders are. He wants Detective Beckett, and only Beckett. [turns and leaves]

Castle:
Can he even do that?

Beckett:
I think he just did.