Also known as: attenuated as to dissipate the taint · attenuation dissipates the taint · attenuation doctrine · fruit of the poisonous tree attenuation
Written by attorneys · grounded in primary & secondary sources — see below
A doctrine under which evidence obtained following an unconstitutional search or seizure remains admissible when the causal connection between the illegality and the evidence has become sufficiently remote. Courts assess attenuation by weighing temporal proximity between the violation and the discovery of evidence, the presence of intervening circumstances, and the purpose and flagrancy of official misconduct.
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State investigators unlawfully detained nurse Lynne at Coastal Therapeutics without probable cause and seized her phone. Two days later Lynne appeared at the station with counsel and voluntarily surrendered records and passwords that led to additional evidence. The passage of time combined with her counseled decision to come forward broke the causal chain, rendering the later evidence admissible.
Federal agents detained line worker Diego without probable cause and obtained incriminating statements. Diego was released and two days later returned voluntarily with counsel, received warnings, and signed a detailed confession identifying a storage unit. The intervening release, passage of time, and counseled appearance purged any taint from the initial detention.
Agents conducted an unlawful search of a hotel room and discovered a coded list of doctors. Weeks later, after an internal review, prosecutors obtained grand jury subpoenas that produced prescription records and testimony. The substantial time gap and the intervening formal grand jury process rendered the subpoena evidence admissible.
Agents unlawfully entered a hotel room and seized a prepaid phone containing call logs. Weeks later the logs led agents to another guest who voluntarily consented to a search of his room that uncovered pills. The extended time interval and the guest's independent consent dissipated any taint from the original entry.
An officer stopped Warren on a public street without reasonable suspicion and ran her identification. The check revealed a valid preexisting warrant unrelated to the stop. The officer arrested Warren on the warrant and found cocaine during a search incident to arrest. The discovery of the unconnected warrant constituted an intervening circumstance that attenuated the taint.
An officer stopped Regina near a manufacturing plant without reasonable suspicion based solely on her carrying a duffel bag at dawn. The officer immediately ran a warrant check that revealed a valid preexisting warrant for a child-support matter. The officer arrested Regina on the warrant and found methamphetamine during a search incident to arrest. The preexisting warrant and the officer's merely negligent conduct broke the causal chain.
Courts weigh three primary considerations: the temporal proximity between the illegality and the discovery of evidence, the presence of intervening circumstances, and the purpose and flagrancy of the official misconduct. Purposeful or flagrant misconduct weighs strongly against attenuation.
A voluntary, counseled decision made after release and the passage of time can constitute a significant intervening circumstance that severs the causal chain. The decision must reflect an independent exercise of free will rather than continued coercion from the initial illegality.
…He was not in custody when he made the statement. The connection between the illegal arrest and the statement had become so attenuated as to dissipate the taint. The statement was therefore admissible. IV We turn finally to the heroin found in Yee's house. The Court of Appeals held that the heroin was admissible because it was not the fruit…
…as whether the connection between the lawless conduct of the police and the discovery of the challenged evidence has "become so attenuated as to dissipate the taint." ' " 435 U. S., at 273-274. It is also suprising to learn that the issues in Stone v. Powell are "distinct" from the Fourth Amendment. [^maj-5]: Consider the full context of the…
…voluntarily several days later to make the statement, the connection between his unlawful arrest and the statement “had 'become so attenuated as to dissipate the taint
…acquired as an indirect result of the unlawful search, up to the point at which the connection with the unlawful search becomes so attenuated as to dissipate the taint
…must outweigh its substantial social costs. Hudson v. Michigan , 547 U. S. 586, 591 (2006). We have previously applied the attenuation doctrine
Discovery of a valid preexisting warrant unrelated to the unlawful stop constitutes an intervening circumstance. When combined with at most negligent police conduct and the absence of purposeful or flagrant misconduct, the warrant breaks the causal chain even if temporal proximity is close.
Flagrant or purposeful misconduct weighs heavily against a finding of attenuation. Systematic or widespread practices that disregard Fourth Amendment limits are more likely to keep the taint intact than isolated negligent errors.
Yes, if the causal link remains unbroken despite the passage of time. When the later evidence flows directly from the initial illegality without meaningful intervening events, suppression is still required even after a substantial delay.