CTV News. Indoor marijuana-growing operations are not only posing a growing risk to public safety, they are costing consumers millions in stolen electricity, according to a report by the Ontario Association of Chiefs of Police. The report, "Green Tide: Indoor Marijuana Cultivation and its Impact on Ontario" found the operations are located in all areas of the country -- from rural to urban, commercial to residential. "They are largely controlled by organized crime, endanger children and their families and cost our economy millions of dollars in stolen electricity," said association president Chief Ean Algar following release of the study Wednesday.