Illinois Jury Demand is a legal document that is used in the state of Illinois to formally request a jury trial for a civil lawsuit. It is a demand for a jury trial in a civil case, where the parties involved are requesting that a jury be impaneled to render a verdict in the case. There are two types of Illinois Jury Demand: a demand for a jury trial in a civil case, and a demand for a jury trial in a criminal case. In a civil case, the demand must be made at least twenty days before the trial date and must be served upon all the parties involved in the lawsuit. In a criminal case, the demand must be made within ten days of the arraignment date. Both types of demand are served upon the court, the prosecutor, and the defendant.