Illinois Demand For Speedy Trial is a law that requires criminal defendants in the state of Illinois to be brought to trial within a certain amount of time once they have been formally charged with a crime. There are two types of Illinois Demand for Speedy Trial: statutory and constitutional. Statutory demand for speedy trial is set by the Illinois Criminal Code and requires criminal defendants to be brought to trial within certain timeframes based on the severity of the charge. Constitutional demand for speedy trial is based on the Sixth Amendment of the U.S. Constitution, which guarantees defendants the right to a speedy trial. In Illinois, the constitutional demand for speedy trial requires that criminal defendants must be brought to trial within 120 days of their initial arrest or filing of charges, whichever is later.