(1)For the purpose of-
(a) obtaining any information which may be required in relation to a matter under investigation under the Act of 2002 or Article 101 or 102 of the Treaty on the Functioning of the European Union,
(b) carrying out any inspection or other fact-finding measure on behalf and for the account of a competition authority of another Member State in accordance with Article 22(1) of the Regulation of 2003,
(c) undertaking inspections considered necessary by, or ordered by, the European Commission with which the Commission has been requested to assist in accordance with Article 22(2) of the Regulation of 2003, or
(d) assisting the European Commission with an inspection conducted by the European Commission in accordance with Article 20 or 21 of the Regulation of 2003,
an authorised officer may, on production of a warrant issued under subsection (3) or (3A) authorising him or her to exercise one or more specified powers under subsection (2), exercise that power or those powers
…