An authorised officer entering premises by virtue of section 95 above, or of a warrant issued under it, may take with him such other persons as may be necessary, and on leaving unoccupied premises that he has entered by virtue of such a warrant he shall leave them as effectually secured against trespassers as he found them.
A warrant issued under that section shall continue in force until the purpose for which the entry is necessary has been satisfied.
A person who—
is admitted into a factory or workplace in compliance with that section or a warrant issued under it, and
discloses to another person information obtained by him in the factory or workplace with regard to a manufacturing process or trade secret,
is liable on summary conviction to a fine not exceeding level 3 on the standard scale or to imprisonment for a term not exceeding three months, unless the disclosure was made in the performance of his duty.