The Michigan Supreme Court recently issued a significant ruling in the case of People v. Jennings, which could reshape the landscape of double jeopardy protections in the state. The court's decision, filed on July 24, 2026, affects how retrials are handled when prosecutorial misconduct leads to a mistrial. This ruling is particularly relevant for defendants facing retrial after a mistrial due to prosecutorial errors.
Devante K. Jennings was originally convicted of carrying a concealed weapon following a jury trial in the Macomb Circuit Court. His case began when police stopped his vehicle based on a witness's description of a car involved in a shooting. During the police interview, Jennings admitted to being present at the scene but later invoked his right to remain silent when asked for a DNA sample. The prosecutor's comments during the trial suggested that Jennings' decision to stop talking indicated a guilty conscience, which led to a mistrial being declared.
The case eventually made its way to the Michigan Supreme Court after Jennings argued that retrial should be barred under double jeopardy principles. The court's ruling addressed the standards for when retrial is permissible after a mistrial caused by prosecutorial misconduct, specifically rejecting the federal standard established in Oregon v. Kennedy.
Background
In the original trial, Jennings faced charges for carrying a concealed weapon after police found a loaded handgun in his vehicle. The incident occurred in April 2019, when a firearm was discharged outside an apartment building. Jennings was driving the vehicle, which was stopped by police after a witness reported the shooting. During a police interview, Jennings admitted to being present at the scene but ended the interview when asked for a DNA sample.
During the first trial, the prosecutor made comments implying that Jennings’ invocation of his right to remain silent indicated guilt. The trial court expressed concerns about the prosecutor's conduct, leading to a defense motion for a mistrial. The court granted the mistrial but ruled that retrial would not violate double jeopardy principles, as the prosecutor did not intend to provoke the mistrial.
Following a second trial, Jennings was again convicted, prompting an appeal. The Court of Appeals upheld the conviction, applying the Kennedy standard, which requires proof that the prosecutor intended to provoke a mistrial for double jeopardy to apply.
The Ruling
The Michigan Supreme Court, led by Chief Justice Megan K. Cavanagh, ruled that the Kennedy standard does not adequately protect the rights guaranteed by the Michigan Constitution. The court stated, “The standard announced by the United States Supreme Court in Kennedy for determining when double-jeopardy principles bar retrial on the basis of prosecutorial misconduct conflicts with the double-jeopardy protections guaranteed by Const 1963, art 1, § 15.”
Instead, the court adopted a new standard based on the Arizona Supreme Court's ruling in Pool v. Superior Court. Under this new standard, retrial is barred when (1) a mistrial is granted due to improper prosecutorial conduct, (2) that conduct is intentional and prejudicial, and (3) it causes prejudice to the defendant that cannot be remedied without a mistrial.
The court emphasized that the protections against double jeopardy are not absolute but should be robust enough to prevent prosecutorial misconduct from leading to repeated trials. The court vacated the Court of Appeals' judgment and remanded the case for further proceedings consistent with its ruling.
Impact
This ruling is significant for defendants in Michigan, as it sets a new precedent for how double jeopardy is interpreted in cases involving prosecutorial misconduct. By adopting the Pool standard, the Michigan Supreme Court aims to provide greater protection against retrials that may arise from prosecutorial errors. This decision could lead to fewer retrials in cases where prosecutorial misconduct is evident, as the new standard requires a more thorough examination of the prosecutor's intentions and actions.
The ruling also highlights a shift in the court's approach to balancing the rights of defendants against the interests of the state. It reflects a growing recognition of the need to safeguard defendants from the potential for harassment through successive prosecutions.
What's Next
Following this ruling, the case will return to the trial court for reconsideration of Jennings' double jeopardy arguments under the newly adopted standard. The ruling may also influence other pending cases involving similar issues of prosecutorial misconduct and double jeopardy in Michigan.