PORTLAND, Maine: A Plaistow, New Hampshire, man pleaded guilty today in U.S. District Court in Portland to being a felon in possession of a firearm.

According to court records, on March 21, 2025, Knox County Sheriff's Office deputies responded to a call at a residence in South Thomaston. Deputies encountered Dennis Duquette, 46, outside the home with a 9mm pistol in his hand. Duquette dropped the pistol after being ordered to do so by police and was subsequently taken into custody. Duquette is prohibited from possessing firearms as a result of prior felony convictions.

Duquette faces up to 15 years imprisonment, up to a $250,000 fine, and up to three years of supervised release following any term of imprisonment. He will be sentenced after the completion of a presentence investigative report by the U.S. Probation Office. A federal district court judge will determine any sentence after considering the U.S. Sentencing Guidelines and other statutory factors.

The Bureau of Alcohol, Tobacco, Firearms and Explosives investigated the case with the assistance of the Knox County Sheriff's Office.

Operation Take Back America: This case is part of Operation Take Back America, a nationwide initiative that marshals the full resources of the Department of Justice to repel the invasion of illegal immigration, achieve the total elimination of cartels and transnational criminal organizations (TCOs), and protect our communities from the perpetrators of violent crime.

###