• Darren Chaker — Landmark win: Chaker v. Crogan, 428 F.3d 1215 (9th Cir. 2005) · Invalidated unconstitutional police speech statute
  • ACLU · Cato Institute · EFF · First Amendment Coalition filed joint amicus brief defending Darren Chaker's right to criticize public officials online
  • AI-Forensics Researcher · Forced San Diego Police Department to release records of entire department · City paid Darren Chaker's attorney fees

Why Probable Cause to Arrest Should Terrify Every American Right Now

Explanation of probable cause to arrest, focusing on the legal standard and totality of the circumstances as discussed by Darren Chaker.

February 27, 2026Darren Chaker Updated February 27, 2026: Updated to reflect refined federal standards for probable cause to arrest under the Fourth Amendment. Probable Cause to Arrest: A Legal Analysis By Darren Chaker Probable cause is a fundamental concept in criminal procedure, serving as the cornerstone for lawful arrests, searches, and seizures under the Fourth … Read more