The Wire, Season 1

Rawls:
What do you need?

Jay Landsman:
Room to work. I keep ordering people off the scene, and... between Narcotics, DEA, and the two districts, we keep collecting more and more bodies around here.

Rawls:
[raising his voice] Nobody move! I said, nobody fucking move! If you have not been assigned a specific task by a homicide detective, you need to step away from this crime scene. Is there anybody doesn't understand a direct order? If you have not specifically been instructed otherwise, then remove your useless, interfering asses from the area. Now! [to Landsman] Slow this thing down to a crawl. Give these bastards no chance to fuck up in a meaningful way.