An alibi is a form of evidence used to defend against a criminal charge by demonstrating that the accused was somewhere other than the scene of the crime when the crime was committed.
In Illinois, as in other states, an alibi is a defense strategy used in criminal proceedings where the defendant aims to prove they were in a different location at the time the crime was committed and therefore could not have been involved in the alleged criminal act. The Illinois Supreme Court Rules, specifically Rule 413(d), require that if a defendant intends to rely on an alibi defense, they must notify the prosecution in writing before the trial. This notice must include specific information about the place where the defendant claims to have been at the time of the alleged offense, as well as the names and addresses of the witnesses the defense intends to call to support the alibi. This allows the prosecution to investigate the validity of the alibi and prepare for cross-examination of the witnesses. Failure to provide this notice can result in the exclusion of the alibi evidence at trial. It is important for defendants considering an alibi defense to work closely with their attorney to ensure compliance with these procedural requirements.