TROY, Mich. -

So far this year, Troy police have investigated three separate marijuana grow operations.

In April, a grow operation was found at a home on the 1000 block of Scottsdale. The operation was deemed legal under the Michigan Medical Marijuana Act (MMMA), but electrical, mechanical and non-permitted building modification issues were found during the investigation. Most of the residence’s electrical and natural gas was shut off because of safety concerns.

Two more grow operations have been investigated in July. The first, on the 1000 block of East Square Lake Road, was discovered after a fire on the roof. The Troy Fire Department found faulty wiring and signs of a grow operation, like three air conditioning units, covered windows and a strong smell of marijuana. Police  found 68 marijuana plants in the basement and 31 grams of dried marijuana.

The other grow operation found in July was at a residence in the 3000 block of John R. There were multiple air conditioning units, boarded up windows and a smell of marijuana. The man showed police “medical marijuana” paperwork, but it didn't comply with the MMMA. Forty-eight large marijuana plants and 796 grams of marijuana were taken. There were also multiple building code violations.