Section 15

An agreement or a combination by 2 or more persons to do or procure to be done any act in contemplation or furtherance of a trade dispute between employers and employees shall not be punishable as a conspiracy if such act committed by one person would not be punishable as a crime.

An act done in pursuance of an agreement or a combination of 2 or more persons shall, if done in contemplation or furtherance of a trade dispute, not be actionable unless the act, if done without any such agreement or combination, would be actionable.

Nothing in this section shall exempt from punishment any person guilty of a conspiracy for which a punishment is awarded by any written law.

Nothing in this section shall affect the law relating to riot, unlawful assembly, breach of the peace, or sedition, or any offence against the State or the President.

A crime for the purposes of this section means an offence for the commission of which the offender is liable under the law making the offence punishable to be imprisoned either absolutely or at the discretion of the court as an alternative for some other punishment.