A Man's House Is His Castle, and the Castle Doctrine Is Older Than America

In 1604, in a dispute about a sheriff, a writ and a house in London, an English judge wrote down a sentence that English-speaking people have been quoting ever since. It was not written to start a movement. It was a clause in a report of a property case, tucked among citations, and it has outlived the parties, the writ, the sheriff, the king and the empire.

The sentence says that a man's house is his castle. When a modern columnist calls the castle doctrine a "gun-lobby invention," he is telling you something about his reading, not about the law. The idea is four centuries older than the National Rifle Association and older than the Mayflower. Let us trace it from the report of a case in the reign of James I to a Colorado statute of 1985, and see what it means for a free people.

Defining the terms

The castle doctrine is the rule that a person in his own home has no duty to retreat before using force, up to and including deadly force, against an intruder he reasonably believes is about to commit a violent felony, such as an attack on the occupants. Many states have extended the rule by statute to some other places, such as a car or a place of work, and many have added presumptions that an occupant who confronts a forced entry reasonably fears for his life.

It sits within the broader law of self-defense, which at common law required that the danger be immediate, the force be necessary, and the response be proportionate. It differs from the ordinary rule in one respect: the duty to retreat. Where a state imposes a duty to retreat, a person attacked in public must try to escape, if he can do so in complete safety, before using deadly force. The castle doctrine says that in your home that duty does not apply. You are already where you are entitled to be, and you have nowhere better to go.

Semayne's Case, 1604

The case is Semayne's Case, reported by Sir Edward Coke in his Reports and decided in the King's Bench in 1604. It concerned a creditor, Peter Semayne, who held a writ of attachment against the goods of a dead debtor kept in a house in Blackfriars, London. The co-occupant, Richard Gresham, refused the sheriff entry, and Semayne sued him. The actual legal question was whether a sheriff may break into a house to execute a civil writ, and under what conditions.

The resolutions Coke recorded are mixed. He wrote that the sheriff, in executing a writ in a civil case against the owner, may not break open the doors of a house unless he first announces his business and requests entry, and he noted that in the king's own suit the sheriff may break the door if, after notice, entry is refused. It is the famous sentence that matters here. Coke reported the rule as, in the words of the old report:

That the house of every one is to him as his castle and fortress, as well for his defence against injury and violence, as for his repose.

Read the sentence slowly. It gives the house two functions. It is a place of repose, where a man sleeps and is at peace. And it is a place of defence "against injury and violence." The phrase about defence comes from the same case that protected the home from officers of the Crown. That is not an accident. A rule that bars the king's sheriff from kicking in your door without notice is the same rule that tells a burglar the door is not his. The principle is the inviolability of the dwelling, and it runs in both directions: against the government and against the criminal.

Note what the case did not do. It did not give householders an unlimited license to kill, and it did not say a sheriff could never enter. Law is a matter of balances, and Coke's own report is full of conditions. But the central image, the house as castle and fortress, took hold.

Blackstone and the common law of defence

A century and a half later, Sir William Blackstone organized the common law for English readers in his Commentaries on the Laws of England, first published between 1765 and 1769. The Commentaries became the most widely read law book in colonial America, and the Founding generation learned its law from them.

Blackstone treats the home in the fourth book, on public wrongs. In describing burglary he observes, in substance, that the law of England has so tender a regard for the immunity of a man's house that it calls it his castle and will not suffer it to be violated with impunity, which is why the breaking of a dwelling at night is a more serious offense than the same theft by day. The point is that the home enjoys a special status, and offenses against it are graver for that reason.

On the defense of self and family, Blackstone's treatment of justifiable homicide lists the case where a man resists one who attempts a violent felony against him, such as robbery or burglary, and kills in so doing. He describes this kind of prevention as justifiable, not merely excusable, and says that the law of nature and of society allows it. He also describes the right of self-preservation as a primary law of nature that no civil society can remove. For the broader picture, see Blackstone's fifth auxiliary right and how it shaped American thinking on arms, which follows the same author into the American doctrine of arms.

I am paraphrasing Blackstone here and not quoting him, because paraphrase is what I can vouch for. If you want his words, the Commentaries are online and free, and I would encourage you to read the passages on burglary and justifiable homicide yourself.

Pitt's cottage

The third beat in the story is a speech. In 1763, in the debate in the House of Commons over a tax on cider, William Pitt the Elder is reported to have declared that the poorest man in his cottage may bid defiance to all the force of the Crown. The cottage may be frail, the roof may shake, the wind may blow through it, the storm may enter and the rain may enter, but the King of England cannot enter. I give it as a paraphrase, because the speech survives in versions that differ in their wording.

It is an eloquent line, and it is worth noticing what it assumes. The poorest man has rights in his dwelling that the most powerful government in the world must respect. The castle is not a privilege of lords. It belongs to the cottager. That is why the doctrine appeals to ordinary people everywhere. You do not need a moat to have a castle, only a door.

From castle to Constitution

The Americans who made the Revolution had been through the other side of this principle. They had lived with writs of assistance, general warrants that let customs officers search houses at will, and with the quartering of troops in private homes. Their grievances against George III in the Declaration of Independence include "For quartering large bodies of armed troops among us."

The Bill of Rights answers both abuses by protecting the home.

The Third Amendment reads: "No Soldier shall, in time of peace be quartered in any house, without the consent of the Owner, nor in time of war, but in a manner to be prescribed by law."

The Fourth Amendment reads: "The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."

Neither amendment uses the word "castle." Both are castle doctrine in the form of a limit on government. The Court has said as much. In Silverman v. United States (1961), it wrote that "at the very core" of the Fourth Amendment "stands the right of a man to retreat into his own home and there be free from unreasonable governmental intrusion." Notice the verb: retreat. The Constitution's own idea of the home is a place to which a man may retreat and make a stand.

That is the link that the critics miss. The castle doctrine in criminal law and the Fourth Amendment in constitutional law come from the same idea, the dwelling as a protected sphere. A man who is secure against the sheriff is also, in the logic of the common law, secure against the burglar. The first protection is a limit on government. The second is the citizen's own, and the common law has always treated the two as of a piece.

The American cases

American courts adopted the rule. In Beard v. United States (1895), the Supreme Court held that a man attacked on his own premises, where he had a right to be, was not obliged to retreat, and in that opinion the Court was drawing on the rule that applies to the dwelling. In Brown v. United States (1921), Justice Holmes wrote the line that every self-defense lawyer knows: "Detached reflection cannot be demanded in the presence of an uplifted knife." The opinion treated the duty to retreat as a doctrine of doubtful strength and dismissed the idea that a man in immediate danger must pause to calculate the safest route. We discuss that case, and the states that went further, in Stand Your Ground Versus Duty to Retreat, Compared Rule by Rule.

Even states that kept a general duty to retreat generally kept the exception for the home. The Model Penal Code, a reform project of the American Law Institute that is no one's idea of a gun-lobby pamphlet, says in section 3.04 that deadly force is not justifiable if the actor knows he can avoid the necessity by retreating with complete safety, but that the actor is not obliged to retreat from his dwelling or place of work, unless he was the initial aggressor. Even the careful drafters of the Model Penal Code, who were skeptical of broad rights to use deadly force, preserved the castle.

Modern statutes, including Colorado's 1985 law

In the late twentieth century state legislatures began to put the doctrine into statute, often to resolve ambiguities that courts had left. One of the earliest was Colorado's 1985 law, popularly nicknamed after a famous movie line and codified in the state's criminal code. It provides that an occupant of a dwelling who is confronted by an unlawful entry by a person who the occupant reasonably believes has committed or intends to commit a crime against a person or property in the dwelling, and who reasonably believes that the intruder might use any physical force, may use any degree of physical force, including deadly force, against that person, and it grants immunity from criminal prosecution and civil liability for doing so. The provision is found in Colorado's Revised Statutes, in section 18-1-704.5.

Other states followed. Florida's 2005 law, which we discuss in the companion piece, created a presumption that a person who uses force against someone who unlawfully and forcibly enters his home or occupied vehicle held a reasonable fear of death or great bodily harm. Many states in the following years expanded the doctrine to cars and, in some, to any place where a person may lawfully be.

These statutes have common features. They set out who is protected (occupants), where (dwellings, sometimes vehicles and workplaces), what the occupant must reasonably believe (that the entry is unlawful and forcible and that harm is likely) and what follows (a presumption of reasonableness, and in some states immunity from suit). They also contain exceptions: the presumption usually does not apply if the intruder is a co-resident, a lawful officer, or someone the occupant has invited, or if the occupant is himself engaged in criminal activity.

The best objection, and the answer

A fair critic of the castle doctrine makes this argument. Presumptions of reasonableness may make a prosecutor's job impossible when the only witness to what happened is the person who pulled the trigger. Mistakes happen, and the dead include family members, delivery drivers, teenagers who came home late and neighbors who had the wrong door. A rule that says the occupant need not retreat, and that presumes his fear reasonable, may turn a tragic error into a legal defense.

That is a serious worry. Here is my answer in points.

1. The doctrine is not a rule against evidence. The presumption in most statutes can be rebutted. If the intruder was invited, if the occupant lured the victim in or if the facts show no reasonable fear, the defense fails.
2. It protects against a harder problem. The home is where a person is most vulnerable, usually at night, often with children present, and often with no ability to know what the intruder wants. The choice a homeowner faces in that moment is not between a measured response and a rash one but between acting and being acted upon.
3. The common law has always rested on reasonableness. The doctrine has never excused an unreasonable belief. An occupant who shoots a teenager who is plainly a guest bears the burden of explaining why that was reasonable.
4. It is old enough to have been tested. The principle has operated for four centuries across thousands of cases. If it routinely produced slaughter, the Anglo-American tradition would have noticed.

What the doctrine says about the people who built this country

I find it moving that the first protection the common law gave the individual against everything, the Crown included, was a door. Not a vote, not a speech, a door. The Founders wrote the freedom of speech and the free exercise of religion into the First Amendment, but they wrote the security of the house into the Fourth and the Third, and before that the English gave it to themselves in a courtroom in 1604. A republic that forgets that a man's home is his own has forgotten what the whole project was for.

It is also a reminder that rights are older than the government that guards them. Coke did not create the castle. He recognized it. The Declaration speaks of unalienable rights, which governments are instituted to secure, not to grant. When a legislature passes a castle statute, it is not inventing a right. It is clarifying a right that was already ours, in language that a prosecutor, a judge and a frightened family can understand.

For the Second Amendment side of this story, see the equalizer, why a firearm matters most to the smallest person in the room and What Jewish and Christian teaching says about defending your own life. And for what happens after an incident, What Happens Legally After You Defend Yourself, Twelve Questions covers the legal process in general terms.

The case in brief

1. The castle doctrine comes from English common law: Semayne's Case (1604) records that "the house of every one is to him as his castle and fortress, as well for his defence against injury and violence, as for his repose."
2. Blackstone's Commentaries, the law book of the Founding generation, treated the home as specially protected and treated resisting a violent felony as justifiable.
3. The Third and Fourth Amendments carry the same principle into the Constitution as limits on government, and the Court has called the right to retreat into one's home the "very core" of the Fourth Amendment.
4. American courts and the Model Penal Code kept the no-retreat rule for the home even where they required retreat elsewhere, and modern statutes such as Colorado's 1985 law put it in writing.
5. The objection that presumptions invite mistakes is serious, but the presumptions are rebuttable and the doctrine has always required reasonableness.

What you can do: read your own state's castle statute on your legislature's website, and learn exactly which places it covers and what presumptions it creates.