Powers of authorised persons
22. In section 58 of the 1952 Act (powers of authorised persons) after subsection (1) there shall be inserted—
“(1A) An officer of the Commission exercising any power under this Act may be accompanied and assisted by—
(a)an officer of the Department; or
(b)an officer of the Department of Culture, Arts and Leisure; or
(c)an officer of the Fisheries Conservancy Board for Northern Ireland.
(1B) Without prejudice to subsection (1)(a), an authorised person other than a private river watcher may for the purpose of preventing or detecting the commission of any offence against any provision of this Act at any time enter on and traverse any land either on foot or, where there is a suitable roadway, lane or path, in a motor vehicle.
(1C) Where by virtue of subsection (1B) an authorised person brings a motor vehicle onto any land, he shall not cause or permit that vehicle to stand or remain in such a position as to cause or be likely to cause any danger or obstruction.
(1D) An authorised person, on leaving any land which he has entered by virtue of this section, shall leave that land as effectually secured against trespassers as he found it.”.