§ 666 Other witnesses.

Here's a plain English summary of this rule.

When someone challenges a juror or a jury panel, both sides get to bring in other witnesses to testify about the challenge. This means the prosecution and the defense aren't limited to just the person being questioned. They can call additional people who might know something relevant, like whether a juror has a bias or connection to the case.

The same rules that apply to evidence in a regular trial also apply here. So if a piece of testimony would normally be allowed or blocked during the main trial, that same standard applies when witnesses testify about a jury challenge. This keeps things consistent. The court doesn't use different or looser standards just because the issue is about jury selection instead of the actual crime.

In short, this rule makes sure jury challenges get a fair hearing. Both sides can call witnesses to support their position, and the same evidence rules that protect fairness in a trial also protect fairness during this part of the process.