The 1st U.S. Circuit Court of Appeals in Boston on Monday upheld the nearly 14-year sentence being served by Maine’s former top drug prosecutor on child pornography possession charges.

James Cameron, 54, of Rome was sentenced on Dec. 17, 2014, in U.S. District Court in Bangor to 13 years and nine months in prison on seven counts of possession of child pornography.

An appeal was filed Jan. 5, 2015. A three-judge panel heard oral arguments on April 5, 2016, in Boston

Cameron, who was the state’s top drug prosecutor in the Maine attorney general’s office, did not appeal a consecutive two-year sentence on a contempt charge related to his flight from Maine in November 2012.

He is incarcerated at the Englewood Federal Correctional Institution in Littleton, Colorado, according to the U.S. Bureau of Prisons Inmate Locator website. Cameron’s earliest possible release date is Sept. 2, 2024.

In rejecting Cameron’s appeal, the panel found that U.S. District Court Judge John Woodcock did not err in calculating what sentence should be imposed and properly used the guidelines as a starting point.

Efforts to reach Cameron’s attorney and the federal prosecutor’s office were unsuccessful Tuesday afternoon.