Definition
Keeping the peace refers to the duty, obligation, or affirmative act of refraining from conduct that disturbs public order and, more specifically, of preventing or discouraging others from doing the same. The term operates in two related legal senses:
1. As a personal obligation: The condition imposed on an individual — typically through a court order, surety bond, or recognizance — requiring that person to abstain from breaches of the peace for a defined period. To "keep the peace" in this sense is the affirmative counterpart to the offense of breach of the peace.
2. As a public duty: The general responsibility of law enforcement officers, magistrates, and, historically, private citizens to actively prevent or suppress public disturbances. This is the original sense underlying the justice of the peace's core function.
The term most commonly arises in practice in connection with sureties of the peace — orders requiring a person to post bond as a guarantee of future peaceable behavior — and in the formal powers granted to peace officers.
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Common Language
Modern common usage (Wiktionary): Present participle of "keep the peace" — to maintain order, avoid conflict, or prevent a dispute from escalating.
Historical common usage (Webster's 1913): Not separately defined; understood as the ordinary compound of "keep" (to maintain, to hold) and "peace" (public tranquility, absence of hostility).
The common meaning is close enough to the legal meaning to seem self-explanatory, which is precisely the trap. In law, "keeping the peace" carries specific procedural weight: it is the stated purpose of a formal bond or recognizance, a defined condition of court supervision, and the statutory basis for a category of judicial and law enforcement authority. A researcher encountering the phrase in historical legal sources should treat it as a term of art, not a casual description of peaceable behavior.
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Why It Matters in Research
The phrase is deceptively simple and for that reason easy to overlook in historical sources. Several navigational points bear attention:
First, Bouvier's redirects the entire entry to SURETY, which signals that in nineteenth-century practice the dominant legal context was the surety of the peace — a magistrate's order compelling a person to post bond as a guarantee against future breach. Researchers working in historical criminal procedure records will encounter this constantly: recognizances conditioned on keeping the peace appear in quarter session rolls, magistrates' records, and early American court dockets with high frequency. The term is procedural as much as substantive.
Second, "keeping the peace" is the logical inverse of "breach of the peace," and the two terms must be read together. Black's defines the term almost entirely by reference to its opposite. This means that changes in how courts defined breach of the peace over time directly reshaped what "keeping the peace" required in a given era.
Third, the term carries different weight depending on whether it describes a private person's duty (under a surety order), a peace officer's authority (the basis for lawful intervention), or the jurisdictional purpose of a justice of the peace (whose office takes its name from this very function). Conflating these three registers in historical sources produces analytical errors.
Fourth, in modern sources the phrase appears in domestic relations contexts — protective orders conditioned on "keeping the peace" — that have no clean historical parallel. Researchers should not read modern domestic-violence restraining order language back into early common-law surety proceedings.
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Historical Dictionary Support
Black's and Bouvier's together sketch the term economically. Black's frames it as the active side of a binary: breach of the peace versus its prevention and suppression. Bouvier's collapses the entry into a cross-reference to SURETY, reflecting the procedural reality that the term's primary legal life in the Bouvier era was inside the surety-of-the-peace mechanism — magistrates binding over persons likely to disturb the peace as a preventive, quasi-criminal remedy.
Neither dictionary addresses the term's public law dimension — the authority of peace officers and the constitutional and statutory sources of that authority — which by the twentieth century became the more contested terrain. Historical dictionaries are adequate guides to the private-law and procedural dimensions but offer little on the police-power and civil liberties questions that dominate modern scholarship.
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Jurisdictional Note
The surety-of-the-peace mechanism survives in various forms across common-law jurisdictions but operates under different statutory frameworks and procedural rules. In some U.S. states it has been largely absorbed into modern protective order and anti-harassment statutes; in others it remains a distinct magistrate's remedy. Researchers should not assume uniform availability or procedure.
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Encyclopedia Cross-Reference
Disorderly Conduct and Breach of Peace — The Law Mind Criminal Law Encyclopedia (criminal_107)
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