Tribunal powers grant civil-court-like authority and decree-like enforcement within judicial-proceedings framework ensuring natural justice and execution through local civil courts. Tribunal and Appellate Tribunal proceedings are guided by natural justice and they may regulate their own procedure; for statutory functions they have the same powers as a civil court, including summoning witnesses, compelling document production, receiving affidavit evidence, requisitioning public records, issuing commissions, reviewing decisions, and dismissing or setting aside ex parte orders. Their orders are enforceable as court decrees and, if not executable by the Tribunal, may be sent to the relevant local civil court for execution; proceedings are deemed judicial for related penal and procedural consequences.