Prohibition of actions of tort against trade unions

(1) An action against a trade union whether of workmen or masters or against any members or officials thereof on behalf of themselves and all other members of the trade union in respect of any tortious act alleged to have been committed by or on behalf of the trade union shall not be entertained in any court. (2) Nothing in this section shall affect the liability of the trustees of a trade union to be sued in the events provided by section 12 of this Act, except in respect of any tortious act committed by or on behalf of the trade union in contemplation of or in furtherance of a trade dispute.