Kimberly Mathers, 26, estranged wife of Eminem, has been charged with drug possession after police in Michigan say they found a bag with a “white powdery substance” in the back of a patrol car that had taken her into custody for questioning, reports the Associated Press. “The drugs were not hers,” Mathers’s lawyer, James Andary, told the Detroit News after his client’s arraignment on Monday. Police say that Mathers and a friend were walking in Macomb County’s Harrison Township on July 8 when police approached and questioned them about an earlier accident involving a jet ski. Mathers is on probation for a charge of operating a vehicle under the influence of alcohol. She also faces a charge of disturbing the peace in Warren.