The Oklahoma Role of the Juror is a set of rights and responsibilities of a juror in the state of Oklahoma. There are three types of Oklahoma Role of the Juror: Grand Juror, Petite Juror, and Alternate Juror. Grand Jurors are selected from the citizenry to investigate allegations of criminal activity. They are tasked with issuing criminal indictments and evaluating the evidence presented to them in order to decide whether to issue an indictment or not. Petite Jurors are commonly referred to as "trial jurors." Petite Jurors are selected from a pool of citizens and summoned to a courthouse to decide matters of law in civil and criminal trials. Alternate Jurors are selected to serve in the event that a seated juror must be removed from the case or is unable to serve. Alternate Jurors have the same rights and responsibilities as seated jurors, and they may be called to replace a seated juror at any time during the trial. The role of a juror in Oklahoma is to serve on the jury and make decisions based solely on the evidence presented in court. Jurors must be impartial and must not base their decisions on outside influences. Additionally, jurors must remain impartial throughout the duration of the trial and must not discuss the case with anyone outside the courtroom.