The petitioner’s side gets to present their case first. The petitioner gets to call his witnesses and ask specific questions of that witness. The respondent then gets to ask questions of each witness after the petitioner is done. This procedure continues until the petitioner has finished with his side of the case. The petitioner then rests his case.
The respondent then gets to present his side of the case. The respondent gets to call his witnesses which are subject to cross-examination by the petitioner. In some cases involving children, the court may appoint an attorney or other advocate, known as a guardian ad litem. The guardian ad litem will present the case from the child’s point of view once the respondent has rested.
After all of the parties have had a chance to call witnesses and testify, the court will likely take the case under advisement and return a judgment in due time.