Definition
In criminal law, retreat refers to the obligation imposed on a person who is under attack to withdraw from the confrontation — to the extent safely possible — before resorting to deadly force in self-defense. A defendant who claims self-defense may be required to demonstrate that retreat was not feasible, or that all reasonable means of escape had been exhausted, before the use of lethal force can be legally justified.
The doctrine operates as a limiting condition on self-defense claims, not as an independent cause of action. Its significance lies in what it demands of a defendant before deadly force becomes permissible: under jurisdictions that recognize a duty to retreat, a person cannot claim self-defense if a safe avenue of escape was available and not taken.
Common Language
Modern common usage (Wiktionary): The act of pulling back or withdrawing from something dangerous or unpleasant; withdrawal by a military force from a dangerous position.
Historical common usage (Webster's 1913): The act of retiring or withdrawing oneself, especially from what is dangerous or disagreeable; a place of privacy or safety; a refuge or asylum.
The common meaning captures the physical act of withdrawal without normative content — retreat is simply what one does when facing danger. The legal meaning adds a layer of obligation: in qualifying jurisdictions, retreat is not merely a prudent choice but a legal prerequisite to lawful deadly self-defense. The failure to retreat when retreat was possible can defeat an otherwise valid self-defense claim entirely.
Common Confusion
RETREAT vs. DUTY TO RETREAT: "Retreat" names the act; "duty to retreat" names the legal obligation. Not all jurisdictions impose a duty. In stand-your-ground jurisdictions, a person has no legal obligation to retreat before using deadly force, even if retreat was possible. Researchers must be careful not to treat historical sources that describe a duty to retreat as universally applicable — the doctrine has eroded significantly in American law since the early twentieth century.
RETREAT vs. CASTLE DOCTRINE: The castle doctrine is a recognized exception to the duty to retreat. It holds that a person in their own home (the "castle") need not retreat before using deadly force against an intruder. These are related but distinct concepts; the castle doctrine does not eliminate the duty to retreat in public spaces under traditional common law frameworks.
Core Elements
The classical formulation of the duty to retreat, as reflected in Anderson's, contains three operative components:
1. Triggering condition: The person must be under assault — retreat is not required in the absence of an imminent threat.
2. Extent of required withdrawal: The person must flee "as far as he reasonably can," measured by physical impediments (walls, ditches) or the ferocity of the assault itself. The standard is reasonable feasibility, not absolute exhaustion of every conceivable escape.
3. The "wall" standard: "Retreating to the wall" — a phrase of art in older authorities — means the defendant must have used every apparent and reasonable avenue of escape before deadly force was lawful. It does not require the impossible; it requires the reasonable.
Why It Matters in Research
Retreat is one of the most jurisdictionally unstable doctrines in American criminal law, and historical sources will mislead researchers who apply them uncritically to modern or non-common-law contexts.
At common law, the duty to retreat before using deadly force was the default rule. Anderson's reflects this baseline: a person "must flee as far as he reasonably can" before killing an assailant. This was the settled position through the nineteenth century.
American courts began diverging from this rule in the late nineteenth and early twentieth centuries, with several states adopting a "true man" doctrine holding that an innocent person need not retreat from a place where he has a right to be. By the twenty-first century, stand-your-ground statutes — which legislatively abolish the duty to retreat in public spaces — had been enacted in a majority of U.S. states. Researchers reading nineteenth-century treatises or dictionary definitions as if they describe current law in stand-your-ground jurisdictions will reach incorrect conclusions.
The Rapalje & Lawrence entry for RETREAT is not substantively useful — the text reproduced under that headword is plainly a misfiled or truncated entry relating to other topics (retroactive statutes, returns on process). Researchers should treat the Rapalje & Lawrence entry as absent for this term and rely on Anderson's as the primary historical dictionary source.
Corpus researchers should also be alert to the phrase "retreating to the wall" as a term of art that appears frequently in nineteenth-century homicide cases and treatises. Identifying it as a legal formula, rather than a descriptive phrase, is essential to correctly interpreting historical sources.
Historical Dictionary Support
Anderson's Dictionary of Law provides the most complete historical formulation: retreat is required before deadly force, measured by feasibility against physical obstacles or the intensity of the attack, and "retreating to the wall" is the operative standard of exhaustion. This reflects orthodox common law doctrine as it stood through most of the nineteenth century.
Rapalje & Lawrence contributes nothing usable on this term. The text appearing under the RETREAT heading in that source is clearly misfiled — it addresses retroactive statutes and procedural rules governing returns of process. No reliance should be placed on it for retreat doctrine.
Neither dictionary addresses the erosion of the duty to retreat that accelerated in American jurisdictions after the late nineteenth century. Historical sources across the Law Mind corpus will similarly reflect the traditional common law rule without acknowledgment of emerging stand-your-ground principles; that divergence is a product of legal development that postdates most dictionary sources.
Jurisdictional Note
The duty to retreat is among the most divided areas of American criminal law. Traditional duty-to-retreat states (including New York, Massachusetts, and New Jersey) require retreat when safely possible before deadly force is lawful. Stand-your-ground states (including Florida, Texas, and a majority of U.S. states by statute) eliminate this requirement in spaces where the person has a lawful right to be. The castle doctrine operates as a near-universal exception to retreat obligations within the home, regardless of jurisdiction. Researchers must identify the applicable jurisdiction and time period before drawing conclusions from any source on this doctrine.
Encyclopedia Cross-Reference
Law Mind Encyclopedia — Self-Defense
Law Mind Encyclopedia — Duty to Retreat
Law Mind Encyclopedia — Castle Doctrine
Law Mind Encyclopedia — Stand-Your-Ground Laws