Sergeant admits drug abuse Published May 31, 2013 By Mike W. Ray Tinker Public Affairs TINKER AIR FORCE BASE, Okla -- For the third time in as many months, a Tinker Airman has been convicted of using synthetic marijuana, commonly known as "spice." Staff Sgt. Michael L. Ryan of the 33rd Combat Communications Squadron pleaded guilty at a special court-martial last week to multiple charges arising from drug abuse. Sergeant Ryan admitted receiving and using spice since 2009 at his off-base residence and even using spice over lunch breaks during the workday. The sergeant also pleaded guilty to violating an off-base limits restriction order by visiting a prohibited spice shop. He also acknowledged using Adderall, a Schedule II controlled substance, without a prescription. Adderall is a combination of amphetamine and dextroamphetamine, central nervous system stimulants that contribute to hyperactivity and affect impulse control. The presiding judge, Lt. Col. Matthew Van Dalen from Randolph AFB, Texas, sentenced the sergeant to three months' confinement, reduction in rank to E-3, and a bad-conduct discharge. The prosecution was led by Capt. John Fuentes, assisted by Capt. Andrew Kasman, both of the 72nd Air Base Wing Judge Advocate's office.