The Mentalist, Season 6

Lisbon:
Where does all this stuff come from?

Pike:
It's stolen.

Lisbon:
What do you mean?

Pike:
Sometimes we get just part of a haul, and we sit on the art so the crooks don't know have a lead, and we keep it here while we investigate the rest of it.

Lisbon:
And nobody knows about it?

Pike:
Well, we keep a pretty tight lid. Our own secret museum.

Lisbon:
Impressive. You bring dates here?

Pike:
No... Just...Once or twice.