constable, under the act. Any water bailiff: may examine any dam, fishing weir, fishing mill dam, fixed engine or obstruction, or any artificial watercourse, and for that purpose enter on any land, may examine any instrument or bait which he has reasonable cause to suspect of having been or being used or likely to be used in taking fish in contravention of the Salmon and Freshwater Fisheries Act or any container which he has reasonable cause to suspect of having been or being used or likely to be used for holding any such instrument, bait or fish, may stop and search any boat or other vessel used in fishing in the Agency area or any vessel or vehicle which he has reasonable cause to suspect of containing: fish which had been caught in contravention of the Salmon and Freshwater Fisheries Act, any such instrument, bait or container as aforesaid, may seize any fish and any instrument, vessel, vehicle or other thing liable to be forfeited in pursuance of the Salmon and Freshwater Fisheries Act. If any person: refuses to allow a water bailiff or a person appointed by the Secretary of State for Environment, Food and Rural Affairs to make any entry, search or examination which he is by this section authorised to make, or to seize anything which he is so authorised to seize, or resists or obstructs a water bailiff or person so appointed in any such entry, search, examination or seizure, they commit an offence. Power to enter lands Any water bailiff or other officer of the Agency, under a special order (which lasts for a maximum of 12 months) in writing from the authority, and any person appointed by the Secretary of State, under an order in writing from him (which also lasts for a maximum of 12 months), may at all reasonable times, for the purpose of preventing any offence against the Salmon and Freshwater Fisheries Act 1975, enter, remain upon and traverse any lands adjoining or near to any waters. This does not include a dwelling-house or the curtilage of a dwelling-house, or decoys or lands used exclusively for the preservation of wild fowl. Seizure An officer of the Agency, an officer of a market authority (any corporation, local authority, body of trustees or other persons having power to maintain or regulate any market) acting within the area of the jurisdiction of that authority,