A high school chemistry teacher found himself in hot water over the weekend when he was charged with making methamphetamine in his school lab, the Bakersfield Californian reported.

Jeff Scheidemantel, 32, who taught at Shafter High School, came under suspicion when he went online to buy red phosphorus, an important ingredient for making the drug, from a supplier outside the U.S.

Click here to read the Bakersfield Californian story.

After a month long investigation, police moved in on Saturday and searched Scheidemantel’s home and the school’s chemistry lab, where they confiscated several weapons and meth recipes, the Californian reported.

During the search of the lab, cops discovered chemicals necessary to begin producing the drug, authorities told the Californian, but no evidence of the finished drug at the school.

Scheidemantel has been placed on paid administrative leave while school officials investigate.