Taylor testified in his own defense from July through November 2009.

One lonely black law professor had come to Washington to testify from personal experience to the nominee's total absence of bias.

The major testified under a grant of immunity from Army prosecutors.

We've got one thing they never bargained on - eight of us here who can testify from firsthand experience.

Indeed, he agreed to testify only in exchange for immunity from prosecution.

All five of the officers testified voluntarily before the grand jury without immunity from prosecution.

"I can testify from my own life and my own service it is simply not true."

The three testified under grants of limited immunity from prosecution.

I think this is an incredible project - and the comments so far testify to the potential of the contributions from the readership.

"Can he testify from firsthand knowledge that they are agents of the federal government?"