The Supreme Court will not exercise its supervisory jurisdiction to intervene pre-emptively in criminal proceedings in the Industrial Relations Court where the applicant has taken no step in the lower court to challenge the validity of the proceedings, and the lower court has jurisdiction to determine its own jurisdiction. A supporting affidavit filed for the purpose of obtaining an order requiring attendance to answer charges need not establish a prima facie case or the essential elements of the offence. The question of whether proceedings are 'instituted' upon filing of the application or upon the making of the court order was left open.
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