Fort Gratiot, MI – Two Fort Gratiot residents were arrested after a St. Clair County Drug Task Force search led to the discovery of methamphetamine, drug materials, and multiple firearms earlier this month.
According to the St. Clair County Sheriff’s Office, officers executed a search warrant on November 12, 2025, at a residence on the 4700 block of Meadowlawn Drive. Investigators reported seizing approximately seven grams of methamphetamine, drug packaging materials, and several firearms — including a .22 rifle, a .300 blackout rifle, an AR-15, a 16-gauge shotgun, and a 9mm pistol — along with ammunition.
Authorities said Christopher Diem, 37, and Harmony Casper, 39, both of Fort Gratiot, were arraigned on November 14 in 72nd District Court. Each faces multiple felony counts, including possession with intent to deliver methamphetamine, maintaining a drug house, and felony firearm.
Bond for both individuals was set at $10,000 cash or surety, according to the sheriff’s report.
The St. Clair County Drug Task Force continues its investigation into the case.
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