The Illinois General Pre-Trial Order (GPO) is a document used by the court to manage the trial process. It is used to set out the obligations of the parties and the court in relation to the trial, including the timetable for the proceedings and the filing of documents. It also sets out the rules that the court expects the parties to follow. The GPO is issued by the court before the trial begins and is binding on the parties. There are two main types of GPO: the Standard GPO and the Complex GPO. The Standard GPO is used in most cases, while the Complex GPO is used in more complicated cases where more detailed orders are required. The GPO is an important tool used by the court to ensure the efficient and fair conduct of the trial.