"[The narcotics] were found in a bunk and obviously with several people residing on a bus a number of people could have potentially possessed those narcotics, so at the end of the day we decided not to pursue charges against him," Bloomington police chief Mike Hartley told People.
Scott Weiland's 10 Best Videos: From Stone Temple Pilots to Velvet Revolver & Beyond
Black was reportedly released from jail a day after his arrest.
Weiland, 48, died of a "mixed drug toxicity: cocaine, ethanol and methylenedioxyamphetamine (MDA),” according to a press release from the Hennepin County Medical Examiner's office.
Scott Weiland and the Wildabouts were touring North America at the time of the singer's death.