(1) A fisheries officer may enter and search a train or aircraft if the fisheries officer reasonably believes that (a) an offence under this Act has been, is being or is about to be committed on the train or aircraft; or(b) there is on the train or aircraft any evidence of the commission of an offence under this Act or a corresponding law.(2) A fisheries officer may signal or direct a person apparently in charge of a train or an aircraft not to move the train or aircraft for a reasonable period if the fisheries officer believes that (a) an offence under this Act has been, is being or is about to be committed on the train or aircraft; or(b) there is on the train or aircraft any evidence of the commission of an offence under this Act or a corresponding law.