Langston v. Humphreys
District Court, City and County of Denver, Colorado (state court) · Docket 2025CV31185 (Division 269) · Filed 2025-04-01
Pending — state filed its answer 2025-05-20
docket checked agent-monitored
Summary
Langston v. Humphreys is a lawsuit filed April 1, 2025 in Denver District Court (Case No. 2025CV31185, Division 269) — a Colorado state court, not the federal court used by the other cases on this page. The plaintiffs are Zachary Langston, the Colorado State Shooting Association, Firearms Policy Coalition, Second Amendment Foundation, Magnum Shooting Center of Colorado Springs, and the National Rifle Association. The defendants are Heidi Humphreys, executive director of the Colorado Department of Revenue, and Michael J. Allen, district attorney for El Paso County. The complaint challenges Proposition KK, the 6.5% excise tax on retail firearm, firearm-precursor-part, and ammunition sales that voters approved in November 2024 and that took effect April 1, 2025. The state filed its answer May 20, 2025. This site cannot yet automatically track new filings in this docket (see notes).
Challenge target
Proposition KK — the 6.5% excise tax on retail firearm, firearm-precursor-part, and ammunition sales
Parties
- Zachary Langston — plaintiff
- Magnum Shooting Center of Colorado Springs, LLC — plaintiff
- Colorado State Shooting Association — plaintiff
- Firearms Policy Coalition, Inc. — plaintiff
- Second Amendment Foundation — plaintiff
- National Rifle Association of America — plaintiff
- Heidi Humphreys — defendant (Executive Director, Colorado Department of Revenue)
- Michael J. Allen — defendant (District Attorney, El Paso County)
Docket timeline
No docketed events logged yet. Check back — the litigation poller runs daily for cases with a resolved CourtListener docket.
Notes
Searched CourtListener's RECAP archive (api/rest/v4/search, type=r) for "Langston", "Humphreys", "Proposition KK", and "firearms excise tax Colorado", filtered to D. Colo. and unfiltered by court; no result matched. This case was filed in Denver District Court — a Colorado state trial court — and CourtListener's RECAP coverage is federal PACER only (it does not carry Colorado state trial-court dockets), so no docket ID exists to resolve; courtlistener_docket_id is null by design, not an unresolved search. Case caption, case number, division, and party list above are transcribed directly from the Colorado Attorney General's Answer filed 2025-05-20 (hosted publicly by Firearms Policy Coalition at the source_url). The poller (agents/litigation_poller) has no CourtListener docket to watch for this case; new filings would need a manual/Denver-County-eCourts-based check, which is out of this component's scope.