§ 634 When taken - Form and requisites.

If someone wants to object to the entire jury panel, they have to do it before the jury is sworn in. Once the jury takes the oath, it's too late to raise this kind of objection.

The objection also has to be written down, not just spoken out loud in court. It needs to clearly explain exactly what the problem is with the jury panel. Vague complaints won't work. The person raising the challenge must spell out the specific facts that support their claim, so the judge can understand exactly what's being argued and why.