STATE v. MAYFIELD

No. 95632-4.

434 P.3d 58 (2019)

STATE of Washington, Respondent, v. John Douglas MAYFIELD, Petitioner.

Supreme Court of Washington.

Filed: February 7, 2019.


Attorney(s) appearing for the Case

Mary Swift , Nielsen, Broman & Koch P.L.L.C., 1908 E. Madison Street, Seattle, WA 98122-2842, for Petitioner.

Sean M. Brittain , Cowlitz County Prosecutors Office, Hall of Justice, 312 SW 1st Avenue, Kelso, WA 98626-1739, Gretchen Eileen Verhoef , Spokane County Prosecutors Office, 1100 W. Mallon Avenue, Spokane, WA 99260-0270, for Respondent.

Nancy Lynn Talner , Attorney at Law, 901 5th Avenue, Suite 630, Seattle, WA 98164-2086, John Charles Roberts Jr. , Christopher Mark Petroni , Wilson Sonsini Goodrich & Rosati, 701 5th Avenue, Suite 5100, Seattle, WA 98104-7036, for Amicus Curiae (American Civil Liberties Union of Washington).

Robert S. Chang , Jessica Levin , Seattle University School of Law, 901 12th Avenue, Seattle, WA 98122-4411, for Amicus Curiae (Fred T. Korematsu Center for Law and Equality).

Thomas E. Weaver Jr. , Attorney at Law, P.O. Box 1056, Bremerton, WA 98337-0221, for Amicus Curiae (Washington Association of Criminal Defense Lawyers).

Hillary Ann Behrman , The Washington Defender Association, 110 Prefontaine Place S #610, Seattle, WA 98104-2626, for Amicus Curiae (Washington Defender Association).


¶ 1 This case concerns an exception to the federal exclusionary rule known as the attenuation doctrine. The attenuation doctrine provides that evidence obtained in violation of the Fourth Amendment to the United States Constitution is not subject to the exclusionary rule if "the connection between unconstitutional police conduct and...

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