One of the police choppers dipped down close to the truck, and a uniformed cop tried to call through a bu horn.

The white and blue police chopper flew toward them in a sweeping, downward arc.

When the men didn't respond, the police chopper would stay in constant radio contact with ground forces.

Downer watched the police chopper through his sight.

I'm telling you, she had me high-tailing down that highway in the police chopper before I was fully awake.

Is that police chopper at Frankfurt Airport still standing by?

This was no police chopper, at least none that he'd ever seen.

Probably a police chopper, called in.

We need to have the tape enhanced, but that doesn't look like a police chopper.

But critical moments had passed since a police chopper had lifted off from the site and vanished somewhere to the north.