Complex sentence: In common trial, however, "Voir Dire" is a motion to cross-examine an expert witness during opposing counsel's direct examination to establish the credibility of said witness before damaging evidence is brought to court through this witness who may not be credible.
Split into simpler sentences: In common trial, however, "Voir Dire" is a motion to cross-examine an expert witness during opposing counsel's direct examination. This action is intended to establish the credibility of said witness before damaging evidence is brought to court through this witness who may not be credible.