 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.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, an officer appointed by the Secretary of State, an officer appointed in writing by the Worshipful Company of Fishmongers, or a police officer may seize any salmon, trout or freshwater fish bought, sold or exposed for sale by, or in the possession for sale of, any person in contravention of the Salmon and Freshwater Fisheries Act.Where from a statement on oath of a water bailiff or any other officer of the Agency, or any person appointed by the Secretary of State, it appears to any justice of the peace that the person making the statement has good reason to suspect that any offence against the Salmon and Freshwater Fisheries Act is being or is likely to be committed on any land situated on or near to any waters, the justice may by order under his hand authorise him, during a period not exceeding 24 hours to be specified in the order, to enter upon and remain on the land during any hours of the day or night for the purpose of detecting the persons committing the offence.