Does a police force have a duty to preserve evidence that might be expected to play a significant role in the defence of a suspect's defense?

California, United States of America


The following excerpt is from People v. Dunson, E056565 (Cal. App. 2015):

Under California v. Trombetta, supra, 467 U.S. 479, law enforcement agencies have a duty, under the due process clause of the Fourteenth Amendment, to preserve evidence "that might be expected to play a significant role in the suspect's defense."

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