Electricity Supply Act 1995

A power of entry under this Division may not be exercised by an authorised officer unless the authorised officer—

is in possession of a certificate of authority issued by the network operator or retailer concerned, and

produces the certificate when required to do so by the owner or occupier of the land.

The certificate of authority—

must state that it is issued under this Act, and

must give the name of the person to whom it is issued, and

must describe the nature of the powers conferred and the source of those powers, and

must state the date (if any) on which it expires, and

must describe the kind of land to which the power extends, and

must be under the seal of the network operator or retailer or must bear the signature of the principal officer of the network operator or retailer, of a prescribed officer of the network operator or retailer or of an officer belonging to a prescribed class of officers of the network operator or retailer.