According to friends of Mr. Deaver, he may argue that he gave inaccurate testimony to Congress and the grand jury because he was an alcoholic.

I was always of the impression that the courts consider "flawed and inaccurate testimony" to be perjury.

The judge accused prosecutors of having misled him on the national security threat and having provided inaccurate testimony.

The case against Mr. Krone was largely circumstantial, including expert but apparently inaccurate testimony that his teeth matched bite marks on the victim.

In the letter to Mr. Starr, the Republicans said they had "encountered a disturbing pattern of contradictory, incomplete or inaccurate testimony" in their 13-month investigation.

Zajicek was also accused of allegedly encouraging other witnesses to provide inaccurate testimony.

Few lawyers believed F.B.I. agents would report findings without an adequate scientific basis, let alone give inaccurate or misleading testimony in court.

This is important because trauma resulting from exposure to an open courtroom or confrontation with a defendant can ultimately lead to inaccurate testimony.

Mr. Cherkasky did not penalize Mr. Hoffa for what he described as sometimes inaccurate testimony.

But the evidence supports our conclusions that some work we examined was characterized by bad science, flawed and inaccurate testimony and failures of management.