A Superior Court jury on Friday found 43-year-old Matthew Joaquin Brown guilty of felony methamphetamine possession, marking the 62nd jury trial win for the Office of the Attorney General under AG Douglas Moylan’s administration. Brown, a repeat offender with a long criminal history, was convicted of Possession of a Schedule II Controlled Substance as a third-degree felony after being caught with meth inside the Probation Office of the courthouse during a self-surrender on June 9, 2025.
According to the prosecution, Brown arrived at the Superior Court's probation office carrying a heat-sealed straw containing crystal methamphetamine, which was discovered during a routine search. He was immediately detained, and the substance tested positive for meth. Prosecutors noted the boldness of the crime, stating it underscored Brown’s disregard for the law and community safety. “Even in a courthouse, he brought meth with him,” the AG’s Office emphasized.
Citing Brown’s extensive criminal record—including multiple meth-related convictions and other offenses ranging from burglary to assault—AG prosecutors Valeria A. Nuesa and Aaron M. Boyce announced they would seek the maximum five-year prison sentence. Brown’s prior convictions in 2019 and 2022 were also for meth possession, reinforcing concerns over his likelihood to reoffend.
Attorney General Moylan used the conviction to highlight Guam’s escalating meth epidemic and called on the Governor to mandate 100% meth inspections at the Port of Guam. “Guam is experiencing an ongoing meth epidemic,” the AG’s release stated. As meth-related crime continues to rise, the administration remains firm in its “tough on crime” stance to protect public safety.