State v. Forrett
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The Supreme Court held that Wisconsin's operating while intoxicated (OWI) graduated-penalty scheme is unconstitutional to the extent it counts prior revocations for refusing to submit to a warrantless blood draw as offenses for the purpose of increasing the criminal penalty.
When Defendant was convicted of his sixth OWI offense the court counted as one of his six prior offenses a 1996 temporary revocation of Defendant's driving privileges for refusing to submit to a warrantless blood draw, which led to Defendant receiving a longer sentence. On appeal, Defendant argued that Wisconsin's graduated-penalty scheme for OWI offenses is unconstitutional because it threatens criminal penalties for those who exercise their Fourth Amendment right to be free from unreasonable searches. The Supreme Court agreed, holding that Wis. Stat. 343.307(1) and 346.65(2)(am) are unconstitutional to the extent that they count as offenses prior revocations resulting solely from a person's refusal to submit to a warrantless blood draw for the purpose of increasing the criminal penalty.
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