1975 and 1977 MKUltra Hearings

LSD, Assassination Plots, Domestic Spying Highlights of Sidney Gottlieb Depositions
Church Committee Staff Grilled CIA Chemist on Behavior Control Experiments, Death of Army Scientist, “Special Interrogations”
U.S. Military Proposed “Use of LSD on a Fairly Large Scale” in Vietnam
LSD Tests and Operations “Probably Not a High Pay-off Program”

Transcripts and official records exist for the primary congressional hearings on the CIA's MKULTRA project, though the full record is divided across several hearings held in 1975, 1977, and 2026.

Here are the primary MKULTRA hearing records and where to find them:

• The 1977 Senate Joint Hearing: The most notable historical transcript comes from the August 3, 1977 joint hearing held by the Senate Select Committee on Intelligence and the Subcommittee on Health and Scientific Research. You can read the official 1977 government transcript on the Senate Select Committee on Intelligence website.

• The 1975 Church Committee Hearings: The initial public revelations of MKULTRA came from the Church Committee in 1975. While the committee published extensive interim reports and referenced closed-door testimonies (such as those from CIA technical chief Sidney Gottlieb), some of the earliest secret transcripts are still being actively declassified through ongoing FOIA efforts.

  https://nsarchive.gwu.edu/briefing-book/dnsa-intelligence/2025-10-30/top-secret-testimony-cias-mkultra-chief-50-years-later

• The 2026 House Oversight Hearing: The House Oversight Committee's Task Force on the Declassification of Federal Secrets held a hearing on "Mind Control and Accountability: Uncovering the Truth of the CIA's MKULTRA Project," which investigated newly discovered documents and government transparency. The written transcript for this hearing is available on the Rev platform.

  https://www.rev.com/transcripts/mk-ultra-congressional-hearing