Section 75 Effect of certificate under section 6 of the Salmon Fishery (Ireland) Act 1863.

A certificate under section 6 of the Salmon Fishery (Ireland) Act 1863 shall be conclusive evidence that the person named therein or his successor in title is the person entitled to exercise the right therein given, but it shall not render any fixed engine lawful which would otherwise be unlawful by reason of its being injurious to navigation, a common nuisance to the public right of fishing or otherwise in violation of the common law or any enactment (including this Act).