This article defines preliminary injunction, details its elements and the hearing process, and includes a sample motion to download. In order to get an injunction, you have to file a Petition with the court.You must also attach an affidavit to your Petition. Download and complete Motion and Notice forms from the Illinois Office of the Courts. Generally, an evidentiary hearing is necessary before imposing a preliminary injunction. Vill. Of Lake in the Hills v. All Illinois Courts must accept these forms. A temporary restraining order (TR0) is a form of injunctive relief that a person, business or government agency when starting a lawsuit. The court may issue a preliminary injunction or a temporary restraining order only if the movant gives security in an amount that the court considers proper. ("TRO"), and Federal Rule of Civil Procedure 65(a)(1).