Mercer County Prosecutor Janetta D. Marbrey

Janetta D. Marbrey was sworn in as Mercer County Prosecutor on December 20, 2024, after being appointed by Governor Phil Murphy and unanimously confirmed by the New Jersey Senate. As the county’s chief law enforcement officer, she leads the 200-member prosecutor’s office.

MCPO

Our Mission

The mission of the Mercer County Prosecutor’s Office is to preserve and enhance the quality of life of Mercer County residents by fostering an environment of law abidingness, safety and security. To that end, this Office is dedicated to the pursuit and attainment of justice.

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There’s a great foundation at the prosecutor’s office and we look forward to building on that foundation and furthering the partnerships with law enforcement in Mercer County.