The federal government says 37 people have been indicted after using Michigan's medical marijuana law as cover for an alleged multi-county marijuana grow operation.

Police say the grow and distribution operation, called Medical Marijuana Team, or MMT, was led by Shawn Taylor who had a store in Muskegon with equipment for indoor hydroponic growing and other supplies to grow marijuana.

Taylor had plans to harvest $3 million of marijuana. According to the indictment MMT members provided direct sales of marijuana to customers and actively recruited people to become ‘patients’ and to name MMT members as ‘caregivers’ so that the MMT could grow more marijuana.

The government says it identified 22 grow operations in cities including Grand Rapids, Muskegon, Kalamazoo, Norton Shores, Grand Haven, Spring Lake and Wyoming. Authorities have filed papers to have the properties forfeited.

reports show more than 160 police officers - from Kent, Ottawa, Muskegon, Kalamazoo, Grand Traverse and Oceana counties - were involved in the investigation.