Evidence Preservation in Wisconsin

State statute requires that any biological material that was collected in connection with a criminal investigation that resulted in a criminal conviction, a delinquency adjudication, or commitment shall be preserved until every person in custody as a result of the conviction, adjudication, or commitment has reached his or her discharge date. Effective: 2005; Amended most recently: 2011.

Wisconsin’s statute meets the best practices standards outlined by the NIST Technical Working Group on Biological Evidence Preservation.

Read the statutes:


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