Not Anymore You're Not 

Phrase used when the FBI take over a scene where the local police had been investigating.

Ex.1
Detective Adams: Hey, what do you think you're doing. We're in charge here!
FBI Agent: Not Anymore You're Not! We have jurisdiction over you.

Ex.2
Older Agent: Look, your little game of goin' over people's heads is over! You could still work, but from now on you answer to ME, you got that?!
FBI Leader: 'Scuse me, who's in charge here?!
Older Agent: I am!
FBI Leader: (more people come in) Yeah well not anymore you're not. This apartment has just been assigned to the FBI.
Older Agent: That's outrageous! On whose orders?!
FBI Leader: On order of the Secretary of Defense! You had your shot, now I'm in charge!
ATF Leader: (more people come in) Not anymore you're not! Orders just came down from Central! They want ATF handling this on all fronts! All right people, from now on you're answering to me!
Secret Service Leader: (more people come in) Not anymore they're not! Orders from the President he wants this handled by his staff personally! Now Nelson is in charge.
Nelson: (bursts into the scene) Not anymore I'm not! (everyone else falls silent)

Not Anymore You're Not by Somebody Told Me April 9, 2007