Church Committee
Final Report -- Book III
23 April 1976

Can also be read here and here.

COINTELPRO: The FBI's Covert Action Programs Against American Citizens
Dr. Martin Luther King, Jr., Case Study
The FBI's Covert Action Program to Destroy the Black Panther Party
The Use of Informants in FBI Intelligence Investigations
Warrantless FBI Electronic Surveillance
Warrantless Surreptitious Entries: FBI "Black Bag" Break-ins And Microphone Installations
The Development of FBI Domestic Intelligence Investigations
Domestic CIA and FBI Mail Opening
CIA Intelligence Collection About Americans: CHAOS Program And The Office of Security
National Security Agency Surveillance Affecting Americans
Improper Surveillance of Private Citizens By The Military
The Internal Revenue Service: An Intelligence Resource and Collector
National Security, Civil Liberties, And The Collection of Intelligence: A Report On The Huston Plan

Roy Wilkins and Ramsey Clark
Search and Destroy: A Report by the Commission of Inquiry into the Black Panthers and the Police
May 1973

US House, Committee on the Judiciary, Subcommittee on Civil and Constitutional Rights
Break-Ins at Sanctuary Churches and Organizations Opposed to Administration Policy in Central America
19 and 20 February 1987

Testimony of the Center for Constitutional Rights