EAST ST. LOUIS — Two Marion County residents pleaded guilty Friday in federal court to an 11-count indictment returned by a Federal Grand Jury against them and others.

According to U.S. Attorney for the Southern District of Illinois, 43-year-old Michael A. Flanagan, and 40-year-old  Dusty Jo Gambill, both of Centralia, pled guilty Friday, July 31, 2015, to all charges, each one related to the production and distribution of methamphetamine.

Both Flanagan and Gambill were charged in Count 1 of the indictment with Conspiracy to Manufacture and Distribute Methamphetamine from February 28, 2014, through October 1, 2014, in Clinton and Marion Counties.

Gambill was also charged in Count 7 of the indictment with Possession of a Listed Chemical (Pseudoephedrine) Knowing or Having Reasonable Cause to Believe that It Would Be Used to Manufacture Methamphetamine.

Count 1 carries a penalty of not less than 5 years, up to a maximum of 40 years in federal prison, a $5 million fine, and at least 4 years’ supervised release.

Count 7 carries a maximum penalty of 20 years in prison, a $1 million fine, and not less than 3 years’ supervised release. Both counts require an assessment of $100. There is no parole in the federal system.

Sentencing is scheduled November 6, 2015, for Gambill, and November 13, 2015, for Flanagan.

Information leading to the charges against Flanagan and Gambill was obtained in an investigation conducted by the FBI, the Marion County Sheriff’s Office, and the Clinton County Sheriff’s Department, assisted by the Illinois State Police Methamphetamine Response Team, and the Centralia Police Department. The case is being handled by Assistant United States Attorney Kit Morrissey