Explanation:

The act was known as the black Act on account of its unpopularity.It provided for stricter control of the press, arrests without warrant, indefinite detention without trial, and juryless in camera trials for proscribed political acts. The accused were denied the right to know the accusers and the evidence used in the trial.The act provided speedy trial of the offenses by a special cell that consisted of 3 High Court Judges. There was no court of appeal above that panel.This act gave a new direction to the movement. Gandhi organized a mass protest at all India level.
In April, 1919, an all India strike was organized. There was mob violence in Bombay, Ahmadabad and all other major towns. The Satyagraha lost momentum with the Jallianwala Bagh tragedy on April 13, 1919.