50. Protection of informants

to disclose the name and address of any informer who has given information with respect to an offence under this Act; or

to answer any question if the answer would lead, or would tend to lead, to the discovery of the name or address of any informer.

in any proceedings before a court for an offence under this Act, the court, after full inquiry into the case, is satisfied that an informer wilfully made a material statement which the informer knew or believed to be false or did not believe to be true; or

in any other proceedings, the court is of the opinion that justice cannot be fully done between the parties to the proceedings without the disclosure of the name of an informer,the court may permit inquiry and require full disclosure concerning the informer.