---
title: "Castle Doctrine"
type: Legal Rule
source: https://casebriefly.com/legal-rules/castle-doctrine
---

# Castle Doctrine

The castle doctrine eliminates the duty to retreat when a person is attacked in their own home. A homeowner may use deadly force against an intruder without first attempting to retreat, treating the home as the ultimate sanctuary.

## Definition

The castle doctrine is an exception to the common law duty to retreat that applies specifically to a person who is attacked in their own home. Under common law, a person was generally required to retreat to safety before resorting to deadly force in self-defense, if retreat could be accomplished in complete safety. The castle doctrine carved out a critical exception: there is no duty to retreat from one's own dwelling. The doctrine reflects the deeply rooted principle that a person's home is their castle and that the law should not require someone to flee from their own residence.

The scope of the castle doctrine varies by jurisdiction. Most states apply it strictly to the dwelling, including the interior of the home and its curtilage. Some states extend it to occupied vehicles and workplaces. The doctrine typically requires that the occupant be lawfully present in the dwelling and that the intruder be unlawfully entering or present. It does not apply to encounters between co-habitants or invited guests in most jurisdictions, as these individuals are lawfully present.

Many states have enacted statutory versions of the castle doctrine that go further than the common law rule. Some create a presumption that a homeowner who uses deadly force against an intruder reasonably feared death or serious bodily harm, effectively shifting the burden to the prosecution to disprove the reasonableness of the homeowner's fear. Others provide immunity from civil liability for the use of force in the home. The castle doctrine differs from stand your ground laws in that it is limited to the home and its immediate surroundings, whereas stand your ground laws eliminate the duty to retreat in any place the defendant has a lawful right to be.

## Elements

- The defendant must be in their own dwelling or home
- The defendant must be lawfully present in the dwelling
- The intruder must be unlawfully entering or unlawfully present
- The defendant must reasonably believe deadly force is necessary to prevent death or serious bodily harm
- No duty to retreat from the home before using deadly force

## Key Case

People v. Tomlins, 213 N.Y. 240 (1914)

## Landmark Cases

| Name | Citation | Significance |
| --- | --- | --- |
| People v. Tomlins | 213 N.Y. 240 (1914) | Articulated the castle doctrine principle that a person is not required to retreat from their own home |
| State v. Garland | 694 A.2d 564 (N.J. 1997) | Addressed the limits of the castle doctrine when the attacker is a co-habitant |
| People v. Aiken | 4 N.Y.3d 324 (2005) | Clarified that the castle doctrine applies to dwellings but not automatically to all buildings or structures |

## Exam Tips

- Check whether the encounter occurs inside the defendant's dwelling; the castle doctrine does not apply in public spaces or other locations
- Determine whether the jurisdiction extends the doctrine to vehicles, workplaces, or only the dwelling
- Note whether the attacker is a co-habitant; many jurisdictions do not apply the castle doctrine to disputes between persons who both lawfully reside in the home
- Distinguish the castle doctrine from stand your ground laws on the exam; they are related but distinct

## Common Mistakes

- Confusing the castle doctrine with stand your ground; the castle doctrine applies only in the home, while stand your ground applies anywhere the defendant has a right to be
- Assuming the castle doctrine provides absolute immunity for any use of force in the home; the defendant must still have a reasonable belief in the necessity of deadly force
- Forgetting that many jurisdictions do not apply the castle doctrine to co-habitant disputes

## Mnemonic Or Memory Aid

"A man's home is his castle" -- no retreat required from your own castle

## Related Rules

- self-defense
- stand-your-ground
- defense-of-others

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Source: [Castle Doctrine — CaseBriefly](https://casebriefly.com/legal-rules/castle-doctrine)