District Court judges are judicial officers who preside over cases in District Courts, which are the trial courts in the federal and state court systems. They handle a variety of cases, including civil disputes, criminal prosecutions, and family law matters. Their primary role is to ensure that trials are conducted fairly and that the law is applied correctly. These judges make important decisions, such as ruling on the admissibility of evidence and interpreting laws. They also oversee jury selection and provide instructions to juries. District Court judges play a crucial role in the legal system by ensuring justice is served at the trial level.