The Michigan Department of Attorney General (DAG) works tirelessly to protect and serve the people of Michigan. The DAG handles a wide range of legal matters from civil and criminal cases, to providing legal counsel to state agencies and officers, to advocating for crime victims.
The Michigan Department of Attorney General utilizes the services of Special Assistant Attorneys General from time to time when the unique circumstances of a particular case create the need for specialized services not currently available within the department.
The Michigan Attorney General has determined that a full and complete investigation of what happened within the Catholic Church is required. This investigation is and will continue to be independent, thorough, transparent, and prompt. My department and this investigation will find out who knew what, and when.
The Conviction Integrity Unit (CIU) reviews cases where someone is saying they did not commit the crime(s) of which they were convicted. There must be new evidence that shows they did not commit the crime. This new evidence must rise to the legal standard of "clear and convincing" evidence of innocence.
In Michigan, a victim is an individual who suffers direct or threatened physical, financial, or emotional harm as a result of the commission of a crime.
Elder abuse happens when someone hurts, ignores, or takes advantage of an older adult. This may be someone who is of advanced age or is vulnerable and unable to protect themselves due to a mental or physical issues.
An expungement removes a conviction from public view. Most employers, landlords, and background checks will not see it. Law enforcement and some licensing agencies may still access it. This page will help explain who qualifies, how the process works, and where to get help.
To investigate and prosecute hate crimes by following up on every credible tip and offer departmental resources to assist local and federal law enforcement partners in this effort.
The Michigan Attorney General is leading the fight against this horrific crime by prosecuting the state's first-ever criminal cases under state law banning human trafficking in Michigan. Victims of human trafficking are in bondage through force, fraud or coercion, for the purpose of sex or labor exploitation.
Knowing how to guard your personal information is your first line of defense against identity theft.
Michigan workers enjoy a wide variety of legal protections regarding issues at work. There are a number of state and federal statutes that protect their wages, safety, and well-being.
Opioid addiction knows no social or economic barriers; it doesn’t care about race or gender. It claims young and old alike. The Michigan Department of Attorney General is committed to fighting this crisis.
Michigan Attorney General's robocall initiative is leading several efforts to protect Michigan residents from the billion plus robocalls made to them every year.
Michigan's Freedom of Information Act (FOIA), MCL 15.231 et seq, provides that requesters can receive copies or make inspections of most public records of public bodies upon written request.
The Open Meetings Act (OMA) took effect January 1, 1977. In enacting the OMA, the Legislature promoted a new era in governmental accountability and fostered openness in government to enhance responsible decision making.1 Nothing in the OMA prohibits a public body from adopting an ordinance, resolution, rule, or charter provision that requires a greater degree of openness relative to public body meetings than the standards provided for in the OMA. 2
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July 21, 2026
LANSING – Today, Oxford Center Safety Director Jeffrey Mosteller pled no contest to one count of Involuntary Manslaughter in connection with the death of 5-year-old Thomas Cooper, announced Michigan Attorney General Dana Nessel. Per a plea and sentencing agreement submitted to the Court, Mosteller will be sentenced to 19 months to 15 years’ incarceration.
The Oxford Center, located in Troy, provided therapy for adults and children with various health conditions, including autism, ADHD, and autoimmune diseases, through Hyperbaric Oxygen Therapy. On January 31, 2025, while Cooper was undergoing treatment, the hyperbaric chamber caught fire from the inside and exploded. Both the National Fire Protection Association (NFPA) and Sechrist, the manufacturer of the hyperbaric chamber, publish strict safety protocols that must be followed before treatment. However, Mosteller deliberately discarded these protocols and ignored precautions at the time of Cooper’s death.
“A young child lost his life in a completely preventable tragedy because this defendant allowed an outdated device to operate in defiance of safety standards,” said Attorney General Nessel. “While no outcome can reverse this loss, it is my hope that this conviction provides a sense of justice to Thomas’s family.”
Mosteller is scheduled to be sentenced by Judge Kwamé L. Rowe of the 6th Circuit Court in Oakland County on August 31.
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