Wong Sun v. United States

Following an unlawful chase and arrest of Toy inside his home, narcotics agents obtained statements from Toy implicating Yee, then found drugs at Yee's home, and Yee implicated 'Sea Dog' — Wong Sun (defendant) — whom Toy identified and led agents to; Wong Sun was arrested without a warrant or probable cause, though no drugs were found on him. All three men were released on their own recognizance and voluntarily returned days later, when Wong Sun gave an unsigned statement he admitted was accurate. The court of appeals found no probable cause supported Toy's or Wong Sun's arrests.

Whether evidence obtained through illegal police conduct is admissible if the evidence is far removed from the illegal police conduct.