(1) For the purpose of obtaining any information necessary for the exercise by the Authority or the Minister of any of their functions under this Act the Competition (Amendment) Act, 1996, or the Act of 1978, an authorised officer may, on production of a warrant issued by a Justice of the District Court expressly authorising him to do so -
(a) enter and inspect premises at or vehicles in or by means of which any activity in connection with the business of supplying or distributing goods or providing a service, or in connection with the organisation or assistance of persons engaged in any such business, is carried on,
(b) require the person who carries on such activity and any person employed in connection therewith to produce to the authorised officer any books, documents or records relating to such activity which are in that person's power or control, and to give to the authorised officer such information as he may reasonably require in regard to any entries in such books, docume