§ 314 Jury discharged if challenge allowed.

Here's a plain-English summary of this rule:

When someone successfully challenges the entire grand jury panel, the whole panel gets sent home. This means if a judge agrees that there was a real problem with how the grand jury was put together, the members can no longer serve on that case.

A challenge to the panel is different from questioning one juror. It means someone raised an issue with the whole group, such as how they were picked or whether the process followed the law. If the judge agrees the process was flawed, the fix is not to try to patch things up. Instead, the entire grand jury is dismissed.

This protects the fairness of the process. If the grand jury was formed the wrong way, letting it continue could lead to unfair results. Discharging the whole panel means the case can start over with a properly formed grand jury, so the process follows the rules from the very beginning.