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Warren County Sheriff's Office

Protecting and serving the citizens of Warren County.

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Warren County Courthouse | 413 Second St., Belvidere, NJ 07823

James J. McDonald Sr., Sheriff

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  • Lifelong resident of Warren County.

  • Raised in Hackettstown, live in Phillipsburg

  • Married 37 years

  • 3 children and 4 grandchildren

  • 30 year career as a police officer in Washington Township

  • 19 years served as Chief of Police

  • Graduate of:

    • West Point Command and Leadership

    • New Jersey State Police Academy (Sea Girt)

    • Morris County Police Academy

  • Certified Police Training Instructor

  • Instructor: Response to the Active Shooter

  • Served 18 years as D.A.R.E. Instructor

  • Memberships (past and present):

    • New Jersey State Association of Chiefs of Police

    • Warren County Police Chiefs’ Assoc. (13 yrs. as President)

    • Board of Directors, Warren County Police Academy

    • Warren County P.B.A. Local 280 (Life Member)

    • New Jersey State P.B.A.

    • Warren County D.A.R.E. Officers Association

    • National Rifle Association

    • Washington Rotary Club

    • Phillipsburg Youth Athletic Association

    • Municipal Alliance

James J. McDonald Sr. Sheriff

Scott T. Marinelli, Undersheriff

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  • Distinguish 29 years, 7 months career in Law Enforcement with the Lopatcong Township Police Dept.  Retired after serving 15 years, 7 months as Chief.

  • Served through the ranks as Patrol Officer, Detective and Sergeant. Served over 20 years in a supervisory position.

  • As Chief of Police I acquired and managed multiple State and Federal Grants.

  • Took the Department into the Technology Age by bringing in record management and arrest systems.

  • Manage the growth of the Police Department due to the increase in population, businesses and activity in the Township.

  • Managed fiscally a multimillion dollar budget.

  • Lifelong resident of Warren County.

  • Married for 25 years with 2 children and 3 grandchildren. 

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James Macaulay, Undersheriff

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  • Lifelong resident of Warren County.

  • Raised in Phillipsburg, live in Hackettstown.

  • Distinguished 29 year career with the Hackettstown Police Department, retiring as Police Chief in October 2022.

  • Served through the ranks from Patrol Officer, Detective, Patrol Sergeant, Lieutenant, and the last 12 years as Chief of Police.

  • 25-year member of the Warren County Tactical Response Team.

  • Law Enforcement Medal Of Honor Recipient.

  • Serious Collision Accident Reconstruction Team Member.

  • Certified Police Training Instructor.

  • LSU Active Killer Instructor.

  • Married for 24 years with two children.

William R. Vine, Undersheriff

  • Lifelong resident of Warren County, New Jersey

  • Distinguished 31-year career in Law Enforcement with the Phillipsburg Police Department. Serving through the ranks from patrol officer, criminal investigation detective, narcotics detective, sergeant, and retiring as lieutenant.

  • Served 25 years on the Warren County Tactical Response Team. Served in many roles, including tactics trainer, element leader, and finishing my career as Team Commander.

  • Certified trainer in many fields of police tactics.

  • Instructor with the Warren County Active Killer Training Program.

  • Married for 18 years with two children

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