The Mentalist, Season 1

Jane:
We've never discussed this because I thought it went without saying, but when I catch Red John, I'm gonna cut him open and watch him die slowly like he did with my wife and child. [Lisbon just stares at him quietly] If you have a problem with that, we should talk.

Lisbon:
Then let's talk. Because when we catch Red John, we are gonna take him into custody and he's gonna be tried in a court of law.

Jane:
Not if I'm still breathing.

Lisbon:
If you try and do violence to him, I will try and stop you. If you succeed in doing violence to him, I will arrest you.

Jane:
I understand.

Lisbon:
I hope so.

Jane:
Well, I'm glad we talked. I had no idea you were so bourgeois and conventional on the issue.