Police force and immunity
Derrick Duane Barker v. City of Weatherford
In brief
- Where it stands
- Dismissed
Petition denied.
- What it’s about
- Derrick Barker's petition challenges a Tenth Circuit ruling that let police officers avoid trial under qualified immunity (a legal shield from damages), arguing that the court read video evidence against him and that a rights violation need not match an earlier case closely to be clearly established.
- Who it affects
- The Tenth Circuit ruling remains in place in Barker’s case, but the Supreme Court did not decide whether its reasoning was correct.
Summary: written with AI from the case record.

What it's about
Barker argued that the appeals court read video evidence against him and required too close a match with earlier cases to find that his rights were clearly established.
Question presented
1. Whether a court may grant summary judgment based on qualified immunity by rejecting the plaintiff ’s account based on the court’s own interpretation of video evidence and thereby resolving disputed facts in favor of officers contrary to *Tolan v. Cotton*, 572 U.S. 650? 2. Whether a constitutional violation is “clearly established” only when existing precedent squarely governs the specific facts at issue, or whether general Fourth Amendment principles can clearly establish that significant force during a minor encounter is unlawful, even absent a case involving materially identical facts.
Documents
Docket activity
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AI analysis generated: Case Briefing
AI analysis generated: Decision Record
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Brief added: Petition
Sources
Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.