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.
Prosecutor Marbrey began her legal career as a law clerk for the Honorable Edward M. Mennetti in Camden County Superior Court. She was hired as an assistant prosecutor by Mercer County Prosecutor Philip S. Carchman in 1983 and started her career as a trial attorney. In 1986, she left the prosecutor’s office to join the insurance defense firm of K. Ruth Larson in Edison, New Jersey, where she managed all phases of personal injury defense litigation. In 1999, Prosecutor Marbrey was hired as litigation management counsel in the Philadelphia, Pennsylvania corporate offices of CIGNA Insurance Company. Additionally, she worked part-time as a municipal prosecutor for Trenton Municipal Court in Trenton, New Jersey, from 1986 to 2003.
In October 2003, Prosecutor Marbrey returned to the Mercer County Prosecutor’s Office when she was selected by Prosecutor Joseph L. Bocchini Jr. to serve as his executive assistant prosecutor. She was promoted to deputy first assistant prosecutor in September 2004 and sworn in as first assistant prosecutor in December 2007.
On August 13, 2012, Prosecutor Marbrey took the oath of office as a New Jersey Superior Court judge after being appointed to the bench by Governor Chris Christie. She retired in October 2023, after sitting in the Family, Civil and Criminal Divisions.
Prosecutor Marbrey is a member of various professional associations including the New Jersey State Bar Association, the Mercer County Bar Association and the Association of Black Women Lawyers – NJ. She was co-chair of the Mercer Vicinage Advisory Committee on Minority Concerns and a member of the New Jersey Supreme Court Committee on Model Civil Jury Charges. Prosecutor Marbrey is also a member of the Central Jersey Chapter of The Links, Incorporated; Alpha Kappa Alpha Sorority, Inc., Epsilon Upsilon Omega Chapter (Trenton, New Jersey); and the Southern New Jersey Chapter of The Drifters, Inc.
Born and raised in Columbus, Ohio, Prosecutor Marbrey attended Columbus public schools and graduated from East High School. She earned her bachelor’s degree in political science with a minor in secondary education from Spelman College in Atlanta, Georgia, and her law degree from Rutgers University School of Law in Camden, New Jersey.