The four search warrants that were executed were part of a six-month investigation that began in July 2020 and ended in February.
On Feb. 12, officers executed two search warrants at a home on Hartman Drive in Midland and at a second residence on Southwood Road in Gravenhurst.
Two vehicles were also identified and became the subject of two remaining search warrants.
These search warrants resulted in officers seizing oxycodone pills, 345 cannabis plants, 15.7 pounds of cultivated cannabis, $57,425 in cash, drug paraphernalia, a crossbow and ammunition.
In connection with the investigation, police charged Jamie Marshall Robitalle, 44, from Midland, with opioid trafficking, cultivating and harvesting cannabis, selling cannabis, six counts of possession of a firearm or ammunition contrary to a prohibition order and possession of property obtained by crime over $5,000.
Stephanie Stainton, 36, from Midland, was charged with opioid trafficking and possession of property obtained by crime over $5,000, while Darlene Bowan, 50, from Essa, was charged with cultivating and harvesting more than four cannabis plants at one time in a home.
Darryl Walter Durkee, 39, from Wasaga Beach, was charged with cultivating and harvesting more than four cannabis plants at one time in a home.
All four of the accused were released from police custody on a recognizance to appear before Midland court on March 25.
Anyone with information is asked to contact OPP at 1-888-310-1122 or Crime Stoppers anonymously at 1-800-222-8477.