Immigration and Customs Enforcement officials say the drugs are being manufactured in China and delivered to Michiganders.
A judge has shot down an attempt by Tucker Cipriano to have his confession thrown out of court.
Police on Wednesday raided three local stores following months of accusations they were selling synthetic drugs.
Authorities say four Catholic middle school students in Detroit got sick after eating a snack that a fellow student may have tainted with marijuana or synthetic marijuana.
An arraignment for several men charged with selling the synthetic drug K2 /Spice at their place of business.
The substance, sold under trade names like Spice and K2, has been blamed for health problems and violent behavior, especially among young people.
An organization representing hundreds of store and gas station owners have stepped forward to say they support the ban and have pulled the product from their shelves.
The Michigan Senate has given final approval a ban on so-called synthetic marijuana, sending the legislation to Gov. Rick Snyder.
A Farmington Hills woman is making it her mission to help rid store shelves of K2 and other designer drugs.
As many local communities are cracking down on the sale of designer drugs, Washtenaw County officials are talking about what approach they will take on the issue