(BENTON, IL) — On May 15, 2015, Adam M. Calvert, 31, Herrin, Ill., was sentenced for his involvement in a heroin violation, the United States Attorney for the Southern District of Illinois, Stephen R. Wigginton, announced Thursday. Calvert, who had previously pled guilty to a one-count indictment charging conspiracy to distribute heroin, was sentenced to 100 months in federal prison, 3 years’ supervised release, and fined $200.00. The offense occurred between 2012 and January 2014, in Williamson and Jackson Counties. Evidence at the plea and sentencing hearings established that Calvert was involved with others in the distribution of heroin. On multiple occasions, Calvert sold heroin to a confidential source working for law enforcement. During the execution of a July 2013 search warrant at Calvert’s Herrin residence, officers located syringes, pre-recorded buy money, a digital scale, and numerous other drug-related items. During a later January 2014 arrest, officers located heroin in Calvert’s sock. At that time, officers again located digital scales, used syringes, and other drug-related items at Calvert’s residence. At sentencing, the district court found Calvert responsible for more than 1.2 kilograms of heroin. The investigation was conducted by the Southern Illinois Enforcement and the Drug Enforcement Administration. The Williamson County State’s Attorney’s Office assisted in the investigation. The case was assigned to Assistant United States Attorney Amanda A. Robertson for prosecution.