"Byron Short is willing to turn state's evidence on his friends."

It is not enough just to turn state's evidence, antitrust lawyers said.

Maybe you'll even get a reduced sentence for turning state's evidence.

You can't even turn state's evidence or take the Fifth!

I read an account in the newspaper recently about a man who turned state's evidence for police protection and his own freedom.

And you never know who out there might turn state's evidence next.

In October 1999 he made a deal to turn state's evidence for the government.

"You will be doing your country a service by turning state's evidence."

Charges were laid against eight, but two turned Queen's evidence.

One of them must be persuaded to turn King's evidence.