Ian Runciman, 38, was booked on felony counts of supplying marijuana to minors and keeping a place where drugs are used. The eighth-grade math teacher at Granite Oaks Middle School also is accused of contributing to the delinquency of a minor.
Runciman was booked into Placer County Jail on Friday, after a parent complained to the school about the suspected criminal activity. Bail was set at $25,000. Runciman posted bail and was released over the weekend.
Rocklin Police Lt. Jamie Knox said Runciman allegedly kept in touch with some of his former students after they transitioned to local high schools.
The crimes are suspected to have occurred at Runciman's Rocklin apartment and involved three to four male juveniles aged 15 to 17.
"He maintained some sort of relationship with past students," Knox said. "Apparently, a few of the boys had their own key to his apartment, so they could come and go as they please. It was a party pad."
Investigators are looking into any other criminal activity that may have occurred, Knox said.
"We want to check into any and all possibilities for why he was furnishing alcohol and drugs to minors," he said. "We're asking parents to speak to their kids, and we hope they step up to report any more crimes or victims in connection with this case."
On Monday, Sgt. Forrest Richadson emphasized that at this time "there is no indication that any of his suspected crimes occurred on a school campus."
Editors note: This story was changed to reflect that the suspected criminal activity occurred at Runciman's apartment in the city of Rocklin. In addition, the story was corrected to say that police do not suspect the activity occurred on the middle school campus.