Browse 12 fourth amendment search and seizure cases decided by Washington Supreme Court. AI-powered summaries, holdings, and legal analysis.
Warrantless car search unlawful without probable cause
State v. Balles, decided by Washington Supreme Court on July 31, 2025, resulted in a defendant win outcome. The Washington Supreme Court affirmed the trial court's decision to suppress evidence obtain...
WA Supreme Court: No-Knock Warrant Lacked Probable Cause for Exigent Circumstances
State v. Evans, decided by Washington Supreme Court on July 31, 2025, resulted in a plaintiff win outcome. The Washington Supreme Court considered whether a "no-knock" warrant was supported by suffici...
Washington Supreme Court: "No-Knock" Warrant Lacked Probable Cause
State v. Roberts, decided by Washington Supreme Court on July 31, 2025, resulted in a plaintiff win outcome. The Washington Supreme Court considered whether a "no-knock" warrant was supported by suffi...
Washington Supreme Court Reverses No-Knock Warrant for Lack of Probable Cause
Sangha v. Keen, decided by Washington Supreme Court on May 22, 2025, resulted in a plaintiff win outcome. The core dispute in Sangha v. Keen involved whether a "no-knock" warrant was supported by suff...
No-Knock Warrant Lacked Probable Cause, Evidence Suppressed
Sangha v. Keen, decided by Washington Supreme Court on May 22, 2025, resulted in a plaintiff win outcome. The core dispute in Sangha v. Keen involved whether a "no-knock" warrant was supported by suff...
Warrant required for cell phone location tracking via Stingray device
M.R. v. State, decided by Washington Supreme Court on May 8, 2025, resulted in a reversed outcome. The core dispute centered on whether the state's use of a "Stingray" device to track a suspect's cell...
Washington Supreme Court scrutinizes 'no-knock' warrant justification
State v. Zghair, decided by Washington Supreme Court on April 17, 2025, resulted in a mixed outcome. The Washington Supreme Court considered whether a "no-knock" warrant was supported by sufficient pr...
WA Supreme Court: No-knock warrant lacked probable cause, evidence suppressed
State v. Zghair, decided by Washington Supreme Court on April 17, 2025, resulted in a plaintiff win outcome. The Washington Supreme Court considered whether a "no-knock" warrant was supported by suffi...
Wash. Supreme Court: "Knock and Talk" lawful even with search warrant
State v. Mercedes, decided by Washington Supreme Court on March 6, 2025, resulted in a defendant win outcome. The Washington Supreme Court considered whether a police officer's "knock and talk" encoun...
Washington Supreme Court Limits No-Knock Warrants
State v. Mercedes, decided by Washington Supreme Court on March 6, 2025, resulted in a plaintiff win outcome. The Washington Supreme Court considered whether a "no-knock" warrant was supported by suff...
WA Supreme Court: "No-Knock" Warrant Lacked Probable Cause
Vet Voice Found. v. Hobbs, decided by Washington Supreme Court on March 6, 2025, resulted in a plaintiff win outcome. The Washington Supreme Court considered whether a "no-knock" warrant was supported...
Court Upholds Seattle Police Use of Facial Recognition in Protest Investigations
John Does 1, 2, 4, & 5 v. Seattle Police Dep't, decided by Washington Supreme Court on February 13, 2025, resulted in a defendant win outcome. This case concerns the Seattle Police Department's (SPD) ...
CaseLawBrief currently tracks 12 fourth amendment search and seizure cases from Washington Supreme Court. This number is updated as new opinions are published.
Outcome breakdown: Defendant Win: 3, Plaintiff Win: 7, Reversed: 1, Mixed: 1.
Each case page on CaseLawBrief includes an AI-generated plain English summary, key holdings, and legal analysis. Click any case above to read its full analysis.