News and Press Releases

Pembroke Man Sentenced To 50 Years On Child Sexual Exploitation Offenses

January 17, 2012

CONCORD, N.H. – Mason Stewart, 39, of Pembroke was sentenced in United States District Court for the District of New Hampshire to 50 years in federal prison after pleading guilty to two counts of sexual exploitation of children and one count of possession of child pornography, announced United States Attorney John P. Kacavas.                                

            The defendant was apprehended in May of 2010, following a criminal investigation by the Pembroke Police Department which began when a young boy disclosed that Stewart inappropriately touched and photographed him. An investigation by the FBI resulted in the identification of another minor victim.    

A search warrant executed at Stewart’s residence revealed sexually explicit photographs of that boy and others stored on computers and cameras. Also on Stewart’s computer were numerous child sexual assault images which had been downloaded through the internet.

The defendant, who is required to register as sex offender due to a prior conviction for assaulting a child, pled guilty to the federal charges in September of last year.  In addition to the prison sentence, he was ordered to a period of lifetime of supervision by United States Probation. 

This prosecution is brought as part of Project Safe Childhood, a nationwide initiative of the United States Department of Justice aimed at combating the growing epidemic of child sexual exploitation and abuse.  Led by United States Attorneys’ Offices and the Criminal Division’s Child Exploitation and Obscenity Section (CEOS), Project Safe Childhood marshals federal, state and local resources to locate, apprehend, and prosecute individuals who exploit children via the Internet, as well as identify and rescue victims. For more information about Project Safe Childhood, please visit

This case was investigated by the Pembroke Police Department and the Federal Bureau of Investigation.    The case was prosecuted by Assistant United States Attorney Helen White Fitzgibbon, the U.S. Attorney’s coordinator for Project Safe Childhood.


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