A Metro Nashville Public Schools teacher of 30 years was arrested in Robertson County early Monday morning.Police said Stephen Henry admitted to using and possessing crystal methamphetamine.Henry teaches at the Johnson Alternative Learning Center, which works with at-risk students.Metro Schools said it is monitoring the situation and that he is still employed. No discipline has been taken yet since school is not in session.He has worked with Metro Schools since 1987.According to the police report, Henry and his siblings are renovating a house on Highway 49 East outside of Springfield.Henry's sister called the sheriff's office after she found what appeared to be meth inside the house.A sheriff's deputy found paraphernalia and what appeared to be crystal meth. The deputy also found four unused needles.Henry would admit to using meth, saying a friend gave him the drugs.Erika Lathon with Addiction Campuses says this could be a teachable moment for any parent.“Given that he's had such a long career teaching, we imagine there's going to be a lot of students who have questions about this,” she said. “This may be a parent's opportunity to open up that dialogue with a student.“We hope ultimately, that he will reach out for help and get it.”Metro School said because it is summer break no action is required by human resources and that it will determine what to do “at the appropriate time.”Copyright 2018 WSMV (Meredith Corporation). All rights reserved.