(1) An agreement or combination by two or more persons to do or procure to be done any act in contemplation or furtherance of a trade dispute shall not be indictable as a conspiracy if such act committed by one person would not be punishable as a crime.
(2) An act done in pursuance of an agreement or combination by two or more persons, if done in contemplation or furtherance of a trade dispute, shall not be actionable unless the act, if done without any such agreement or combination, would be actionable.
(3) Section 3 of the Conspiracy, and Protection of Property Act, 1875, and subsections (1) and (2) of this section shall be construed together as one section.