- Judiciary and Rules Committee, Idaho State Senate: Testimony on H 658 – A Bill Exempting From Disclosure Information Relating to Executions by Robert Brett Dunham, Executive Director, Death Penalty Information Center (Boise, March 9, 2022), via Zoom
- Revenue Committee, Wyoming State Senate: Testimony on SF 150 – Repealing the Death Penalty by Robert Brett Dunham, Executive Director, Death Penalty Information Center (Cheyenne, March 4, 2021), via Zoom
- Judiciary Committee, Nebraska Unicameral Legislature: Testimony on LB 238 – A Bill Relating to Witnessing Executions by Robert Brett Dunham, Executive Director, Death Penalty Information Center (Lincoln, March 7, 2019)
- Committee on Criminal Justice and Public Safety, New Hampshire House of Representatives: Testimony on HB 455 – Changing the penalty for capital murder to life imprisonment without the possibility for parole by Robert Brett Dunham, Executive Director, Death Penalty Information Center (Concord, February 19, 2019). Exhibits to Mr. Dunham’s testimony can be accessed here.
- Committee on Administration of Criminal Justice, Louisiana House of Representatives: Testimony on HB 101 – Eliminating the death penalty for offenses committed on or after August 1, 2017 by Robert Brett Dunham, Executive Director, Death Penalty Information Center (Baton Rouge, May 17, 2017). Exhibits to Mr. Dunham’s testimony can be accessed here.
- Committee on Criminal Justice and Public Safety, New Hampshire House of Representatives: Testimony on HB 351 – Making the Killing of a Person Under Age 18 a Capital Offense by Robert Brett Dunham, Executive Director, Death Penalty Information Center (Concord, February 7, 2017)
- The State of the Death Penalty in the United States (visuals) by Robert Brett Dunham, Executive Director, Death Penalty Information Center at the Sixth World Congress on the Death Penalty (Oslo, Norway, June 23, 2016)
- Criminal Justice Committee, Florida Senate: Materials from hearing on revisions to Florida’s death penalty statute in light of Hurst v. Florida featuring testimony of Robert Dunham, Executive Director, Death Penalty Information Center (Tallahassee, January 27, 2016). Mr. Dunham’s testimony begins at the 11:30 mark of the video of the Senate Committee Meeting. Read Mr. Dunham’s testimony here.
- Testimony of Robert Brett Dunham, Executive Director, Death Penalty Information Center before the Pennsylvania House Judiciary Committee in connection with Pennsylvania’s death penalty moratorium (Harrisburg, June 11, 2015)
- Judiciary Committee, Colorado Senate: Testimony on SB 64 — Non-unanimous Juries in Capital Sentencing by Richard C. Dieter, Senior Program Director, Death Penalty Information Center (February 10, 2016)
- Testimony of Richard C. Dieter, Executive Director, Death Penalty Information Center, before the Nebraska Judiciary Committee on the Costs of the Death Penalty (Lincoln, March 13, 2013)
- Testimony of Richard C. Dieter, Executive Director, Death Penalty Information Center, before the Pennsylvania Senate Government Management and Cost Study Commission on the costs of the death penalty and its lack of return on the costs of the death penalty and its lack of return. (Harrisburg, June 7, 2010)
- Testimony of Richard C. Dieter, Executive Director, Death Penalty Information Center, before the Commission to Study the Death Penalty in New Hampshire on costs of the death penalty and related issues on costs of the death penalty and related issues. (December 4, 2009)
- Testimony of Richard C. Dieter, Executive Director, Death Penalty Information Center, before the Maryland Commission on Capital Punishment regarding the costs of the death penalty and related issues regarding the costs of the death penalty and related issues (Sept. 5, 2008)
- Testimony of Richard C. Dieter, Executive Director, Death Penalty Information Center, before the Nevada Advisory Commission on the Administration of Justice regarding the costs of the death penalty and related issues regarding the costs of the death penalty and related issues (July 7, 2008; telephonic testimony)
- Judiciary Committee — Colorado House of Representatives: Testimony of Richard C. Dieter of Richard C. Dieter (February 7, 2007)
- The Death Penalty in the United States: Strategies for Change by Richard C. Dieter at the World Congress on the Death Penalty by Richard C. Dieter at the World Congress on the Death Penalty (February 1, 2007)
- Capital Punishment Research Initiative: The Future of Innocence by Richard C. Dieter by Richard C. Dieter (October 6 – 7, 2006)
- Tipping the Scales: Supreme Court Fails to Recognize Danger of Executing the Innocent by Richard C. Dieter
- Supplement Letter for the Subcommittee on the Constitution, Civil Rights, and Property Rights’ Hearing on the Death Penalty
- New Hampshire House Criminal Justice and Safety Committee: Testimony of Richard C. Dieter of Richard C. Dieter (Jan. 10, 2006)
- Speech by Richard C. Dieter given at the International Conference on Human Rights and the Death Penalty given at the International Conference on Human Rights and the Death Penalty (December 6 – 7, 2005)
- Testimony of DPI Executive Director Richard Dieter before the New York State Assembly Standing Committees on Codes, Judiciary, and Correction on Costs of the Death Penalty and Related Issues (January 25, 2005)
- Speech by DPIC Executive Director Richard Dieter at the American Correctional Association Annual Conference (August 2003)
- Testimony of Richard Dieter Before the Legislative Commission Subcommittee to Study the Death Penalty (April 18, 2002)
- 2002 Presidential Candidates’ Views on the Death Penalty by Richard C. Dieter
- Testimony of Richard C. Dieter, Esq. Executive Director, Death Penalty Information Center to the Illinois House of Representatives addressing innocence and the death penalty (October 17, 2000)
- Testimony of Richard C. Dieter, Esq. Executive Director, Death Penalty Information Center to the Illinois House of Representatives addressing innocence and the death penalty (September 15, 1999)
- The US Death Penalty and International Law: US Compliance with the Torture and Race Conventions: DPIC’s presentation on the U.S. Death Penalty and International Law at the Ford Foundation (November 12, 1998)