It was a criminal case in which a former law clerk was scheduled to give key testimony.

Hearings lasted almost four months, with the Smith brothers providing key testimony.

He said he felt it was "very important to re-read key testimony to be sure that everyone heard and understood the evidence."

"Usually what the government will do is read in key testimony from the previous grand jury through a witness to the new grand jury," West said.

They might have an agent on the stand who will read in portions of key testimony.

This support and protection can be either physical protection for providing key testimony, or emotion support in the form of psychiatric help and assistance.

Meanwhile, as Adam Clymer of The Times reported this week, the committee's staff has been sluggish about pursuing key testimony.

He denied the charges in a television interview, saying key testimony against him by Soviet citizens was coerced and manipulated.

He also took the prosecution to task for failing to call witnesses who might have supported key testimony.

A guide to the revelations from the Leveson Inquiry, including key testimony from journalists, celebrities and phone hacking victims.