This document discusses the key participants in a criminal courtroom trial known as the courtroom work group. It describes the roles of the judge, prosecuting attorney, defense attorney, bailiff, court reporter, clerk of court, expert witnesses, lay witnesses, jurors, and victims. The judge oversees the trial and weighs objections from both sides. The prosecuting attorney represents the state in arguing for conviction, while the defense attorney argues for acquittal of the defendant. Other participants like the bailiff and court reporter ensure order and create an official record of the trial proceedings.