Definition
The Prosecutor of the Pleas is the title given in New Jersey — and historically in a small number of other states — to the county-level officer responsible for conducting criminal prosecutions on behalf of the government. The office is functionally equivalent to what most other American jurisdictions call a district attorney, county attorney, or state's attorney: the principal public officer who initiates and manages criminal proceedings at the county level, represents the state in criminal court, and exercises charging discretion over felonies and misdemeanors arising within the county.
The term is largely a New Jersey peculiarity and survives today primarily as an archaic but still technically operative title in that state's county prosecutor system. In modern New Jersey practice, the officeholder is commonly called the County Prosecutor, though the formal statutory designation retains historical roots in the older phrasing.
Why It Matters in Research
Researchers using historical New Jersey legal materials — case reporters, court records, legislative journals, or early treatises — will encounter this title frequently and must recognize that it carries no special substantive distinction from district attorney in other states' materials. The functions, powers, and prosecutorial discretion of the Prosecutor of the Pleas map directly onto those of the district attorney as discussed in general criminal procedure sources.
The key navigational trap is terminological: a researcher cross-referencing New Jersey historical sources against national secondary literature may fail to connect the Prosecutor of the Pleas with the broader body of doctrine on prosecutorial discretion, charging authority, and plea negotiation if they search only for the common title. Any Law Mind corpus research into the history of public prosecution in the United States should flag New Jersey as a jurisdiction that maintained distinctive nomenclature even while sharing the underlying legal structure.
The Rapalje & Lawrence entry for this term appears to be incomplete in surviving form — the entry cuts off mid-sentence — which is itself a caution: historical dictionary sources do not always provide complete guidance on regional titles, and the Bouvier entry, though brief, is the most useful of the three for confirming the functional equivalence of this title with district attorney.
Researchers focused on plea bargaining, arraignment practice, or the constitutional dimensions of prosecutorial discretion will find that doctrine developed under the district attorney title in most states applies with full force to New Jersey's Prosecutor of the Pleas. There is no separate body of law unique to the title itself.
Historical Dictionary Support
All three source dictionaries agree on the essentials: this is a New Jersey county-level prosecuting officer equivalent in function to the district attorney elsewhere. Black's Law Dictionary is the most explicit in naming the corresponding officers — district attorney and county attorney — while Bouvier confirms the equivalence directly. Rapalje & Lawrence's entry is fragmentary in surviving form and adds little beyond confirming the title's existence as a recognized legal term.
None of the three historical dictionaries address the historical origins of the title, the scope of the officer's charging discretion, or the procedural rules governing the office. For those questions, researchers must look to New Jersey statutes, court rules, and case law directly, as the dictionary sources treat the term purely as a matter of nomenclature. The historical dictionaries also do not note whether any states other than New Jersey used this title in a sustained way; Bouvier's vague reference to "one or two other states" is uncorroborated and likely reflects early American variation in county officer titles that did not persist.
Jurisdictional Note
This title is specific to New Jersey and is not used in any other modern American jurisdiction as a standard designation. Researchers working in other states should treat any encounter with the term as a reference to New Jersey practice or to early American legal history predating standardized prosecutorial titles.
Encyclopedia Cross-Reference
Arraignment and Entry of Plea — The Law Mind Criminal Law Encyclopedia (criminal_198)
Plea Bargaining: Law, Practice, and Judicial Oversight — The Law Mind Criminal Law Encyclopedia (criminal_202)
Guilty Pleas: Voluntariness, Collateral Consequences, and Withdrawal — The Law Mind Criminal Law Encyclopedia (criminal_203)