Why would he have a police radio in his house?

More simply, he has a police radio in his car.

She could hear no sound from the hall, except the police radio.

There was nothing to do but wait after Banks had made the call over the police radio.

He put up the flag and the police radio went off.

The message is finally heard on the police radio and passed to Dave.

Over the course of two hours, the police radio was almost totally quiet.

I'm sure he's monitoring a police radio even as we speak.

I turned off the police radio, then drank some coffee.

It still beat the heck out of talking to him on the police radio.