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Justice Department Files Lawsuit Against Denver's Semi-Automatic Weapons Ban

The U.S. Justice Department filed a civil lawsuit against the City of Denver, alleging its ban on semi-automatic weapons violates the Second Amendment. The suit seeks to halt enforcement of the ordinance, which restricts firearms with magazines over 15 rounds. City officials rejected a prior warning, defending the 37-year-old policy as effective for public safety.

Cnn
The Washington Times
Fox News
3 sources·May 5, 8:17 PM(1 hr ago)·2m read
Justice Department Files Lawsuit Against Denver's Semi-Automatic Weapons BanSubstrate placeholder — needs review · Wikimedia Commons (CC BY-SA 3.0)
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The Justice Department filed a civil lawsuit against the City of Denver on Tuesday, alleging that the city's ban on semi-automatic weapons violates the Second Amendment. S. District Court for the District of Colorado, names the City and County of Denver and the Denver Police Department as defendants.

It asks a judge to stop the city and its police department from enforcing the weapons ban and to implement policies that correct instances in which people’s rights were violated by the ban. Denver’s ordinance, enacted nearly 40 years ago in 1989, restricts firearms with magazines over 15 rounds, including weapons that have been modified to hold magazines over 15 rounds.

’ “Law-abiding Americans, regardless of what city or state they reside in, should not have to live under threat of criminal sanction just for exercising their Second Amendment right to possess arms which are owned by tens of millions of their fellow citizens,” Harmeet Dhillon, head of the Justice Department’s Civil Rights Division, said in a statement.

The Justice Department has vowed to sue state and local governments across the country for gun policies it claims violate the Constitution. The department established a Second Amendment Section last year to lead the filing of such lawsuits. The Justice Department filed a lawsuit against Washington, DC, for its restrictions on AR-15-style weapons.

The department also sued the Virgin Islands Police Department for permitting delays it says are unreasonable. Harmeet Dhillon warned Denver of a potential lawsuit in late April, writing that Denver could avoid the lawsuit if officials agreed to stop enforcing the ban and acknowledge it was unconstitutional. City Attorney Miko Brown responded in a letter dated Monday.

” The 12-page complaint alleges that Denver’s ban on commonly owned semi-automatic rifles directly violates the right to bear arms, according to Fox News. ” Denver’s ordinance restricts the possession and sale of guns with magazines carrying more than 15 rounds, as confirmed by multiple sources.

City leaders credited the ordinance in part for a drop in violent crime, noting that courts across the country have previously rejected similar cases.

Assistant Attorney General Harmeet Dhillon of the Justice Department’s Civil Rights Division said she directed the Second Amendment Section to defend law-abiding Americans from such restrictions. The complaint seeks declaratory and injunctive relief. Denver Mayor Mike Johnston stated that the city’s law has stood for 37 years because it works, saves lives, and reflects community values.

U.S. Constitution.

Key Facts

Lawsuit Filing
Justice Department sues Denver alleging Second Amendment violation by ban on semi-automatic weapons.
Ordinance Details
Denver's 1989 ordinance restricts firearms with magazines over 15 rounds and modified weapons.
Dhillon Statement
Harmeet Dhillon states law-abiding Americans should not face sanctions for exercising Second Amendment rights.
City Response
City Attorney Miko Brown calls the request baseless and an overreach, defending the 37-year ban.
Prior Actions
Justice Department established Second Amendment Section last year and filed similar lawsuits against DC and Virgin Islands.

Story Timeline

6 events
  1. 2026-05-05

    Justice Department files civil lawsuit against City of Denver over semi-automatic weapons ban.

    3 sourcesCNN · The Washington Times · Fox News
  2. 2026-05-04

    City Attorney Miko Brown responds to Justice Department warning in a letter, rejecting the request.

    1 sourceCNN
  3. Late April 2026

    Harmeet Dhillon warns Denver of potential lawsuit and offers way to avoid it.

    1 sourceCNN
  4. 2025

    Justice Department establishes Second Amendment Section.

    1 sourceCNN
  5. 1989

    Denver enacts ordinance banning semi-automatic weapons with magazines over 15 rounds.

    2 sourcesCNN · Fox News
  6. Undated recent

    Justice Department files lawsuits against Washington, DC, and Virgin Islands Police Department over gun restrictions.

    1 sourceCNN

Potential Impact

  1. 01

    Reactions from public safety leaders emphasizing the ban's role in reducing violent crime.

  2. 02

    Broader challenges to state and local gun policies across the U.S.

  3. 03

    Potential halt to enforcement of Denver's gun ban if lawsuit succeeds.

  4. 04

    Possible policy changes in Denver to address alleged rights violations.

  5. 05

    Influence on ongoing debates over Second Amendment interpretations in courts.

Transparency Panel

Sources cross-referenced3
Framing risk28/100 (low)
Confidence score85%
Synthesized bySubstrate AI
Word count404 words
PublishedMay 5, 2026, 8:17 PM
Bias signals removed4 across 4 outlets
Signal Breakdown
Loaded 3sensational 1

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