Subject to the provisions of this section, any authorised officer of a council shall, on producing, if so required, some duly authenticated document showing his authority, have a right to enter any premises at all reasonable hours—
If it is shown to the satisfaction of a justice of the peace on sworn information in writing—
the justice may by warrant under his hand authorise the council by any authorised officer to enter the premises, if need be by force:
An authorised officer entering any premises by virtue of this section, or of a warrant issued thereunder, may take with him such other persons as may be necessary, and on leaving any unoccupied premises which he has entered by virtue of such a warrant shall leave them as effectually secured against trespassers as he found them.
Every warrant granted under this section shall continue in force until the purpose for which the entry is necessary has been satisfied.
If any person who in compliance with the provisions of this section or of a warrant issued thereunder is admitted into a factory,. . . or workplace discloses to any person any information obtained by him in the factory,. . . or workplace with regard to any manufacturing process or trade secret, he shall, unless such disclosure was made in the performance of his duty, be liable to a fine not exceeding level 3 on the standard scale or to imprisonment for a term not exceeding three months.
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