07/08/2026
Michigan Supreme Court: Being High Can Make a Miranda Waiver Invalid — Here's Why That Matters
The Michigan Supreme Court just issued an important ruling on Miranda rights, and it's worth understanding if you or someone you know is ever questioned by police.
In People v. Soriano, the defendant had taken a large amount of L*D before an alleged sexual assault. Roughly two hours later, while still showing signs of confusion and erratic behavior, he was taken to a hospital, read his Miranda rights, and made an incriminating statement to a Grand Traverse County sheriff's deputy. That statement became a central piece of evidence at trial, and a jury convicted him of assault with intent to commit criminal sexual conduct involving pe*******on.
The Michigan Supreme Court reversed the conviction in a 6-1 decision, with the majority opinion written by Justice Kimberly Thomas. The Court's reasoning is important for anyone who thinks Miranda rights are a simple checkbox: voluntary intoxication doesn't automatically invalidate a Miranda waiver. The real question is whether the person had the mental capacity, at that moment, to actually understand the rights they were giving up. Our criminal defense team understands that voluntary intoxication has always been a difficult defense in Michigan courts.
Courts look at the totality of the circumstances — age, experience with law enforcement, education, and background all matter. Here, the short gap between the defendant's documented erratic, hallucinatory behavior and the Miranda warning was enough for the Court to conclude he couldn't have truly understood what he was waiving, even though the worst of the hallucinations had passed by the time he was questioned.
The Court also rejected the idea that the error was "harmless." The Court of Appeals had reasoned that other evidence was strong enough to convict regardless. The Supreme Court disagreed, explaining that the improperly admitted statement was too central to the prosecution's case on intent — a required element for this specific charge — to say the jury would have reached the same result without it. The case now returns to the trial court.
Why does this matter beyond one case? Because it's a reminder that a Miranda waiver here in Michigan isn't just about whether the words were read aloud — it's about whether the person being questioned was actually capable of understanding them. That distinction can be the difference between evidence being used against someone and evidence being thrown out.
If you or a family member has been questioned by police — especially under circumstances involving intoxication, injury, youth, or mental impairment — the details of how and when Miranda rights were given can matter enormously to your case. Our Michigan criminal defense attorneys have spent more than 32 years handling these issues in courts across the state, and we know how to scrutinize whether a waiver actually holds up.
Questions about your rights during a police interrogation? Give us a call at 866-7NoJail (866 766 5245) during business hours. We're here to help.
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