Billy Costigan: Freeze!
Colin Sullivan: Whoa! Put the fucking gun down!
Billy Costigan: Put your fucking hands up!
Colin Sullivan: Alright, alright. I can get you your money!
Billy Costigan: What did you say?
Colin Sullivan: I said I can get you your...
Billy Costigan: [punches Sullivan across the face] You didn't come here to talk, you came here to get arrested.
Colin Sullivan: You have fucking tapes of what? Costello was my informant. I was a rat? Fuck you, prove it.
Billy Costigan: [standing Sullivan up] Get up!
Colin Sullivan: What is this? A citzens arrest? Blow me. Only one of us is a cop here Bill. Did you hear me Bill? No one knows who you fucking are!
Billy Costigan: Will you shut the fuck up!
Colin Sullivan: I'm a sargeant in the Massachusetts State Police, who the fuck are you? I erased you!
Billy Costigan: You erased me, huh?
Colin Sullivan: Yea... shoot a cop, Einstein, watch what happens.
Billy Costigan: What would happen is this bullet would go right through your fucking head!
Colin Sullivan: Watch what happens!
Billy Costigan: What? So you can get the parade? The bagpipes and bullshit? Fuck you! Fuck you! I'm fucking arresting you!
Colin Sullivan: That's the stupidest thing you could do.
Billy Costigan: Shut the fuck up!
Billy Costigan: I could give a fuck if the charges don't stick... I'm still fucking arresting you.
Colin Sullivan: Shit.