http://www.legislation.gov.uk/apni/1966/17/section/64Fisheries Act (Northern Ireland) 1966An Act to extend the functions of the Ministry of Agriculture in relation to fisheries and to make provision for the development and improvement of fisheries by, or with the assistance of, that Ministry; to establish the Fisheries Conservancy Board for Northern Ireland, and to define their functions; to provide for the transfer to that Board of the property, rights and liabilities of, and to dissolve, the existing boards of conservators; to consolidate with amendments the Fisheries Acts (Northern Ireland) 1842 to 1954 and certain other enactments relating to fisheries; otherwise to amend the law with respect to fisheries; and for purposes connected with those matters.texttext/xmlenStatute Law Database2021-04-29Expert Participation2020-12-31 PART V641If the owner or occupier of an eel weir takes or suffers to be taken therein any salmon or trout, he shall be guilty of an offence and shall be liable on summary conviction to a fine not exceeding [ £500] or to imprisonment for a term not exceeding six months or to both such fine and such imprisonment.2Where a person is charged with an offence under this section it shall be a good defence to prove that such salmon or trout was taken unintentionally and, immediately upon being taken, was returned to the water without any avoidable injury.1981 NI 7