Objects that with reference to the criminal code must be taken, or might represent evidence in criminal proceedings, are to be seized and given over to the custody of the court or kept safe in some other way. Government authorities may decline the inspection or delivery of their files and other documents if they consider that the disclosure of their contents would prejudice the general interest. If they decline the inspection or delivery of the files and other documents, the final decision on the matter is made by the judicial panel. Commercial companies and other legal persons may demand that information concerning their business operations are not to be published. The investigating judge may order postal, telegraphic and related organizations to retain and deliver to him, against a certificate of receipt, letters, telegrams and other shipments addressed to the suspect or sent by him, if the circumstances give reason to expect that such shipments will represent evidence in the proceedings. The investigating judge opens the delivered shipments in the presence of two witnesses, taking care that the seals are not damaged. The envelopes bearing the addresses are placed in safe custody and a record of the opening is made.