Production of documents: witnesses must present documents; court decides admissibility and may inspect, with state-secrecy exception. A witness in possession or power of a document must bring it to court notwithstanding objections; the court determines validity of objections, may inspect the document or take other evidence to assess admissibility except for documents referring to matters of State, may direct a translator to keep contents secret and treats breach of that direction as an offence, and cannot require production of communications between Ministers and the President.