6.—(1) An authorised officer may at any reasonable time enter any land for the purpose of ascertaining whether any plant or part of a plant which is a noxious weed is there.
(2) An authorised officer or any other person authorised in writing in that behalf by the Department may at any reasonable time enter any land for the purpose of doing under paragraph (4) of Article 5 anything required to be done by a notice under paragraph (1) of that Article.
(3) If any person refuses to allow an authorised officer, or any other person such as is mentioned in paragraph (2), to enter any land which he is entitled to enter under this Article, or obstructs or knowingly impedes him in the exercise of his functions, he shall be guilty of an offence.
(4) An officer or other person seeking to enter any land in exercise of a power conferred by this Article shall, if required to do so, produce his credentials.
(5) An officer or other person entering any land in exercise of a power conferred by this Article may bring with him such equipment as he considers necessary.