EAST ST. LOUIS — Stephen R. Wigginton, United States Attorney for the Southern District of Illinois, announced today that on June 23, 2015, Anthony Johnson, 25, pleaded guilty to an indictment charging him with Possession of Contraband by a Federal Inmate.

Johnson was an inmate at the Federal Correctional Institution located in Greenville, at the time the offense was committed. Johnson faces a term of imprisonment of not more than twenty years, a fine up to $250,000, or both, and a term of supervised release of not more than three years which must be served consecutive, or in addition to his current sentence. Sentencing has been scheduled for September 18, 2015, in East St. Louis, Illinois. Johnson has been held without bond since his arraignment on May 12, 2015.

The charge arose on September 28, 2014, when an officer monitoring the visiting room at FCI-Greenville observed Johnson swallow an unknown object.

Based on this behavior, Johnson was immediately placed in a dry cell after his visit ended so that his bowel movements could be monitored. On October 1, 2014, Johnson defecated one balloon which contained a white powdery substance. The substance found in the balloon contained heroin with an approximate weight of 1.1 grams.

The case was investigated by the Bureau of Prisons’ Special Investigation Section. The case is assigned to Assistant United States Attorney Angela Scott.