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New book: The Morality of Self-Defense and Military Action: The Judeo-Christian Tradition (Praeger Books, ABC/CLIO). Google books edition.

Research Areas

Criminal Justice & U.S. Const. amends. 4-10

Digital Economy


Health, Education & Welfare



Media and 1st Amendment


Right to Arms: Policy issues

Right to Arms: Law, history, politics

Right to Arms: International

Terrorism (& Fahrenheit 9/11)



Newspaper & magazines articles: 2007 to present; 2001-2006; 1986-2000.

Books, law review articles, other scholarly publications.

Blogging 2014-present. Archive.

Video archive

Audio archive

Briefs and legal citations

SSRN author page. Google Scholar. DU Law faculty page.

Social media

Kopel blogging for the Washington Post's "Volokh Conspiracy"

Kopel on Twitter.

Dave Kopel Channel on Youtube.

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Kopel's Law & Liberty News. Twice-daily web newspaper collecting articles from Kopel and those whom he follows on Twitter.


Author page on Amazon.

New: Firearms Law and the Second Amendment: Regulation, Rights and Policy. Law school textbook and treatise. (Oct. 2017: Aspen Pubs., 2d edition). With Nicholas J. Johnson, George S. Mocsary, and Michael P. O'Shea. Publisher webpage. Supplement online chapters from the 1st edition, free to the public: Chapter 12 – Social Science. Chapter 13 – International Law. Chapter 14 – Comparative Law.

New: The Morality of Self-Defense and Military Action: The Judeo-Christian Tradition (Praeger Books, ABC/CLIO). Google books edition. Book inteview on "Devil's Advocate," CPT 12 Denver, 15 minutes.

Rules for State Legislators: Jerry Kopel's Guide (2015). With Jerry Kopel.

The Truth about Gun Control (Encounter Books, 2013). Who is sovereign in the United States? Is it the people themselves, or is it an elite determined to rule citizens who are seen as incapable of making choices about their own lives? This is the central question in the American gun-control debate. Animated video featuring a section of the book. 4 minutes. Reprinted in Saving the Republic: The Fate of Freedom in the Age of the Administrative State. Roger Kimbal, ed. (Encounter Books, Jan. 23, 2018).

A Conspiracy Against Obamacare: The Volokh Conspiracy and the Affordable Care Act (Palgrave MacMillan). The legal scholars who fought and defeated the unconstitutional power grab.

More books by Kopel.

World Languages

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Polski /Polish.


Cesky /Czech

Magyar /Hungarian.


Deutsch /German.

Nederlands /Dutch.

Svenska /Swedish.

Dansk /Danish.

繁體中文 /Chinese.

日本語 Full-text Japanese version of this entire website.

Jerry Kopel

JerryKopel.com. My father's essays on Colorado and national politics, based on his 22 years of service as a Colorado State Representative.

About Kopel, and contact info

Colorado Inside Out, Feb. 16, 2018. Denver housing czar resigns. Federal judges says that "Raise the Bucks" rules to make initiatives much more difficult violates one-man-one-vote. Sen. Gardner gets marijuana policy assurances, lifts freeze on DOJ nominees. AG Cynthia Coffman will go through caucus system in Gov race.

U.S. Senate Judiciary Committee. Dec. 6, 2017. Bill to ban bump stocks and some gunsmithing. Kopel starts at 2:31:28.

Short articles

The Anglo-American Office of Sheriff. Americans' right to elect their Sheriffs comes from ancient English legal tradition. Reason. Feb. 13, 2018.

Can Governments Ban Gun Stores? Amicus Brief in Supreme Court Case. Reason. Feb. 9, 2018.

Congress should use constitutional power to force states to honor gun rights. Why national right to carry reciprocity is a proper exercise of congressional power. The Hill. Dec. 31, 2017. With Joseph Greenlee.

The American Indian foundation of American gun culture. Washington Post. Nov. 21, 2017.

Mass shootings in gun-free nations. Washington Post. Nov. 9, 2017.

What if there were serious gun controls? The Hill. Nov. 8, 2017. With Joseph Greenlee.

Are There Really More Mass Shootings Than Days in the Year? Wall Street Journal. Oct. 8, 2017.

Some older articles on school safety:

Want to stop mass shootings? Let's get more guns in the right hands. Especially, FASTER training for teachers. The Hill. June 18, 2017. With Joseph G.S. Greenlee.

Good guys with guns: Former Interpol chief Ron Noble on the Westgate Mall mass shooting. Washington Post. May 16, 2016.

Guns on university campuses: The Colorado experience. Washington Post. April 20, 2015.

Pretend "Gun-free" School Zones: A Deadly Legal Fiction. 42 Connecticut Law Review 515 (2009).

Only press itself can stop copycats. Killers, suicides thrive on publicity given those who perpetrated earlier crimes. Rocky Mountain News/Denver Post, Sept. 23, 2006.

A Principal and his Gun. How Vice Principal Joel Myrick used his handgun to stop the school shooter in Pearl, Mississippi. By Wayne Laugesen. Boulder Weekly, Oct. 1999.

In the Media

'Teachers with guns' bill fails in Colorado. Durango Herald. Feb. 22, 2018. by Joey Bunch.

Trump vows progress will be made on regulatory ban of bump stocks. (Toronto) Globe and Mail. Feb. 20, 2018. by Adrian Morrow.

Gun Rights Expand in Era of Mass Shootings. Wall Street Journal. Feb. 19, 2018. by Nicole Hong.

Sessions' 'Anglo-American. comments, and the danger of the liberal Trump outrage machine. Kansas City Star. Feb. 13, 2018. by Aaron Blake (Washington Post).

Jeff Sessions spoke of the ‘Anglo-American heritage of law enforcement.’ Here’s what that means. Washington Post. Feb. 12, 2018. by Marwa Eltagouri.

Sessions invokes 'Anglo-American heritage' of sheriff's office. CNN. Feb. 12, 2018. by Maegan Vazquez.

US guns used in a majority of crimes in Mexico, Center for American Progress says. AZCentral.com. Feb. 6, 2018. by Rafael Carranza.

Denver says yes to bump stocks ban less than four months after Las Vegas shooting. Denver Post. Jan. 22, 2018. by John Aguilar.

Sessions Unleashes the Hounds on Pro-Pot States. With billions of dollars and the will of the voters at stake, critics say this is one flip-flop Trump can't afford. The American Conservative. Jan. 5, 2018. by Kelly Beaucar Vlahos.

Sessions takes aim on marijuana enforcement. Newburgh Gazette (Illinois). Jan. 5, 2018, by Dwayne Harmon.

America’s rifle: Why so many people love the AR-15. NBC News. Dec. 27, 2017. By Jon Schuppe.

Pelosi’s claim the House GOP is ‘inviting’ violent criminals to carry concealed weapons. Three Pinocchios. Washington Post. Dec. 12, 2017. by Glenn Kessler.

Colorado AG Cynthia Coffman wants concealed carry for guns across state lines. Colorado Independent. Dec. 4, 2017. by Corey Hutchins.

‘Ghost Guns,’ Homemade and Untraceable, Face Growing Scrutiny. New York Times. Nov. 27, 2017. by Christina Caron.

Cornyn Bill Would Nix Pay for Federal Overseers Who Don't Report to Gun Background Check System. PJ Media. Nov. 23, 2017. by Karl Herchenroeder.

Americans aged 18-34 most likely to oppose assault weapons ban, poll finds. The Guardian. Nov. 19, 2017. By Lois Beckett.

Why both sides of debate say Devin Kelley should not have owned a gun. Christian Science Monitor. Nov. 8, 2017. by Patrik Johnsson and Henry Gass.

Television, Radio, Podcasts  

TEDx Mile High. Understanding Guns. Panel with Kimberly Corban, Jay Breitlow, and Coni Sanders. Feb. 21, 2018.

Colorado Inside Out. Feb. 16, 2018. Full episode. Denver housing czar resigns. Federal judges says that "Raise the Bucks" rules to make initiatives much more difficult violates one-man-one-vote. Sen. Gardner gets marijuana policy assurances, lifts freeze on DOJ nominees. AG Cynthia Coffman will go through caucus system in Gov race. Postgame: Sex harassment charges vs. Sen. Baumgardner.

Colorado Inside Out. Feb. 9, 2018. Full episode. New Denver Manager of Public Safety. Dick Lamm endorses Mike Johnston for Governor. Joint Budget Committee questions funding for questionable behavior of Colorado Civil Rights Commission. Governor considers clemency grant for marijuana prisoners. Postgame: Sexual controversies at State Capitol.

Colorado Inside Out. Jan. 19, 2018. Full episode. Women's March. Denver in top 20 in Amazon HQ2 search. Colo. Lottery bureaucracy aims for exemption from legislative review. Continuing disaster of Aurora VA hospital. Postgame: Denver Post to erect paywall.

Japan's low gun crime rate. The Briefing. Monocle 24. London. Jan. 10, 2018. Begins at 18:30.

Colorado Inside Out. Jan. 5, 2018. Full episode. Meow Wolf art space coming to Denver. AG Sessions pulls plug on DOJ marijuana memos. Denver bill to ban bump stocks and more magazines. Upcoming Colo. legislative session. Postgame: Gubernatorial race.

Guns and Mass Shootings. Free Thoughts Podcast on Libertarianism.org. 51 minute interview of Kopel by Trevor Burrus. Jan. 5, 2018.

Colorado Inside Out. Dec. 29, 2017. The year ahead. Special guest host Peter Boyles. Full episode. 2018 gubernatorial race. More 2018 election look-ahead. Disgraces and predictions. Postgame: CIO memories.

Colorado Inside Out. Dec. 22, 2017. Year in review. Full episode. Trump and Colorado. Governor's race developments. Denver's growth and growing pains. Postgame: Important issues from 2017.

Devil's Advocate with Jon Caldara. Dec. 22, 2017. Interstate right to cary reciprocity. Why bump stocks should be more stringently regulated.

Colorado Inside Out. Dec. 15, 2017. Full episode. The year in one word. New Colo. Sup. Ct. Justice Melissa Hart will pull Court to the left. Denver Mayor Hancock explores Winter Olympics bid. Rep. Steve Lebsock response to allegations. Postgame: Police raid some marijuana stores.

NRA News. Cam & Company. Dec. 12, 2017. Pelosi fails Washington Post fact check on national carry reciprocity.

British Gun Control in Colonial America. America's Fabric radio program. 1030 KVOI AM, Tucson, Ariz. Dec. 2017. Charles Heller reads Kopel's article The American Revolution against British Gun Control.

The Supreme Court and the Second Amendment today. Guns, Politics and Freedom radio show. Dec. 10, 2017. Kopel starts at 11:00.

How to regulate (not ban) bump stocks. Interstate carry reciprocity. Cato Daily Podcast. Dec. 8, 2017.

Yes, They Are Coming for Your Guns. Hawaii confiscates firearms from lawful users of medical marijuana. NRA News, Cam & Company. Nov. 30, 2017.

Should Gun Makers Face Lawsuits After Mass Shootings? National Public Radio. OnPoint with Tom Ashbrook. Nov. 14, 2017. Kopel first appears at 20:42.

Colorado Inside Out: 25 Years. Oct. 27, 2017. Hour-long documentary about Colorado's longest-running public affairs television program.

FarenHype 9/11. This 2004 documentary unmasks the lies in the Michael Moore and Harvey Weinstein movie Farenheit 9/11. Now available on the Web.

Colorado Inside Out. June 30, 2017. Time machine episode, set in 1917. Kopel plays Democratic Senator "Honest John" Shafroth. Introductions. Passing of Buffalo Bill Cody. US enters the Great War. Denver Mayor Robert Speer's building program. Postgame: Russian revolution.

Latest Monographs & Journal articles

The Right to Arms in Nineteenth Century Colorado. 95 Denver University Law Review (forthcoming 2018).

Firearms Law of Vietnam. Full translation of Vietnamese arms statute, plus Vietnamess text, and historical background. Independence Institute Issue Paper no. 5-2017. By Tien Thuy Dinh.

Restoring the Right to Keep and Bear Arms in Cato Handbook for Policymakers (8th ed. 2017). With Trevor Burrus and Robert A. Levy.

The Federal Circuits' Second Amendment Doctrines. 61 St. Louis University Law Journal 193 (2017). With Joseph G.S. Greenlee.

Licensed Handgun Carry for Young Adults Serving in the Armed Forces. Independence Institute, Issue Paper no. 1-2016.

The First Century of Right to Arms Litigation. 14 Georgetown Journal of Law & Public Policy 127 (2016).

Lyman Trumbull: Author of the Thirteenth Amendment, Author of the Civil Rights Act, and the First Second Amendment Lawyer. 47 Loyola University Chicago Law Journal 1117 (2016).

Background Checks for Firearms Sales and Loans: Law, History, and Policy. 53 Harvard Journal on Legislation 303 (2015).

The Costs and Consequences of Gun Control. Cato Institute Policy Analysis no. 784 (Dec. 1, 2015).

Book review of "This Nonviolent Stuff'll Get You Killed: How Guns Made the Civil Rights Movement Possible." 35 Cato Journal 443 (2015).

Reforming Mental Health Law to Protect Public Safety and Help the Severely Mentally Ill. 58 Howard Law Journal 715 (2015). With Clayton Cramer.

The History of Firearms Magazines and of Magazine Prohibition. 88 Albany Law Review 849 (2015).

The Posse Comitatus and the Office of Sheriff: Armed Citizens Summoned to the Aid of Law Enforcement. 104 Journal of Criminal Law and Criminology 671 (2015).

In the Courts and Congress

Teixeira v. Alameda County, no 17-982. U.S. Supreme Court, Feb. 9, 2018. Amicus brief on behalf of Cato Institute, Jews for the Preservation of Firearms Owner, Independence Institute, Millennial Policy. Argues that county's ban on all new gun stores violates the Second Amendment. Address circuit court doctrine, and the history of the British arms embargo on the American colonies.

RMGO v. Hickenlooper (Colo. App. 2018). Amicus brief on behalf of Colorado Law Enforcement Firearms Instructors Association; Sheriffs Chad Day (Yuma County), Steve Reams (Weld), Shannon K. Byerly (Custer), and Sam Zordel (Prowers); and the Independendece Institute. Why Colorado's magazine ban endangers public safety.

Duncan v. Becerra. 9th Circuit, Jan. 8, 2017. Amicus brief urges affirmance of district court decision against confiscation of standard capacity magazines. Addresses standard of review, and empirical evidence. On behalf of Doctors for Responsible Gun Ownership, Independence Institute, and Millenial Policy Center. Co-authored with Joseph G.S. Greenlee.

Bridgeville Rifle & Pistol Club v. Small, No. 15, 2017 (Del. Dec. 7, 2017). Cited in opinion striking down prohibition on defensive arms carry in state forests and parks.

U.S. Senate Judiciary Committee. Dec. 6, 2017. Written testimony on: Bill to ban bump stocks and some gunsmithing. S 1916; Fix NICS Act, S. 2135; Bill to allow indefinite delays in background checks, S. 1923; interstate carry reciprocity, S. 446. Video of testimony (Kopel starts at 2:31:28). Written responses to Questions for the Record for Sen. Grassley.

Kolbe v. Hogan. Amicus brief in support of cert. petition, in challenge to Maryland ban on common firearms and magazines. Amici are the National Sheriffs' Association, Cato Institute, Second Amendment Foundation, and Independence Institute. Attorneys are David Kopel, Randy Barnett, Joseph Greenlee, Ilya Shapiro. Aug. 21, 2017.

Teixeira v. Alameda County, California (9th Cir., en banc). Jan. 31, 2017. Amicus brief on county ban on all new gun stores. Historical evidence from the American Revolution shows that the British bans on firearms commerce led the Americans to take up arms.

Sheriffs brief in the 10th Circuit Court of Appeals. Jan. 16, 2015. The website for the Colorado Sheriffs' federal civil rights lawsuit against the 2013 Bloomberg anti-gun bills is here.


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