The fifth victim had a few nasties in her past that maybe we could've used to attack her credibility.

And prosecutors must provide such information to the defense, who may use it to attack a witness's credibility.

Defense lawyers have also attacked the woman's credibility.

As defense lawyers attacked Officer Young's credibility today, emotions ran high.

For example, the person might justify message rejection by attacking the source's credibility.

"I was upset that she would attack my personal credibility on the witness stand," he told the judge.

That makes it awkward for either side to attack her credibility.

As the hearings began, the prosecution accused Bryant's defense team of attacking his accuser's credibility.

The agents did not tape-record interviews, giving me ammunition to attack their credibility.

Lipscomb ultimately did not testify because the prosecution believed that the defense would attack his credibility.