(1) The Authority may appoint persons to be authorised officers for the purposes of this Act.
(2) For the purpose of obtaining any information necessary for the performance by the Authority of any of its functions under this Act, an authorised officer may, on production of a warrant issued under subsection (4) authorising him or her to exercise one or more specified powers under subsection (3), exercise that power or those powers.
(3) The powers mentioned in subsection (2) are the following:
(a) to enter, if necessary by force, and search 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) to enter, if necessary by force, and search any dwelling occupied by a director, manager or any member of staff of an undertaking that carries on an activity referred to in paragraph