This 1928 ILD pamphlet written by William Z Foster is a valuable guide for working class militants on how to relate to the courts if under arrest or investigation.

Under Arrest! Worker’s Self-Defense in the Courts by William Z Foster. Labor Defender Pamphlet Series No. 5, 1928.

Contents: How to Defend Yourself in Court-What to Do When Arrested and Questioned, No Information to the Police, Capitalists Using Terrorist Tactics and Frameups, The Class Struggle Goes on in the Court Room, No Information When Booked -Give Your Name Only, Do Not be Fooled by Promises of Suspended Sentences, Prepare for Trial, Conduct in Court, Bring out the Class Issues, Demand a Working Class Jury, Sedition and Reason Laws, Foreign Workers and Deportation, Mass Support for Workers on Trial, Self Defense is the Best Defense.

Labor Defender was published monthly from 1926 until 1937 by the International Labor Defense (ILD), a Workers Party of America, and later Communist Party-led, non-partisan defense organization founded by James Cannon and William Haywood while in Moscow, 1925 to support prisoners of the class war, victims of racism and imperialism, and the struggle against fascism. It included, poetry, letters from prisoners, and was heavily illustrated with photos, images, and cartoons. Labor Defender was the central organ of the Scottsboro and Sacco and Vanzetti defense campaigns. Editors included T. J. O’ Flaherty, Max Shactman, Karl Reeve, J. Louis Engdahl, William L. Patterson, Sasha Small, and Sender Garlin.

PDF of full pamphlet: https://www.marxists.org/history/usa/pubs/labordefender/pamphlets/under-arrrest.pdf