California does not have a mutual combat law. If two people agree to fight and one of them is hurt, both can still be arrested and charged with assault or battery. Agreeing to the fight does not make it legal. It also takes away much of the self-defense argument that people assume they will have.
This guide explains how the doctrine works in California courts, where the "two states allow it" claim comes from, what the withdrawal rule requires, and what to do if you are under investigation after a fight.
TL;DR
- California treats a fistfight by consent as a breach of the peace. The state Supreme Court held in People v. Lucky that mutual consent is not a defense to a charge like this.
- "Mutual combat" in California is mostly a limit on self-defense. Under CALCRIM No. 3471, you can claim self-defense after agreeing to fight only if you actively try to stop and give the other person a chance to stop.
- Simple battery is a misdemeanor, but the charge gets much more serious if someone is badly hurt, a weapon is involved or the other person is a peace officer.
- Texts, videos and witness statements about an "agreement" often decide these cases. Do not talk to police before you speak to a criminal defense lawyer.
Table of Contents
- What mutual combat means in California
- Where the "legal in two states" idea comes from
- What the California courts have said
- How charges arise from a fight both people agreed to
- Withdrawal: the one route back to self-defense
- Initial aggressor versus mutual combatant
- Common misconceptions
- Our perspective on fight cases
- What to do if you were in a fight and police are involved
- How a defense lawyer can approach a mutual combat case
- Talk to a Los Angeles criminal defense lawyer
- FAQ
- Sources
What mutual combat means in California
People use the phrase for a fight both sides chose to have. California courts use it in a narrower, legal sense. The jury instruction on this topic describes a fight that begins or continues by mutual consent or agreement, and the agreement can be express or implied. You do not need a handshake or a formal challenge. Words, gestures and conduct before the first punch can all be used to show consent.
The key point is where the concept sits in a case. It is not a defense that the defendant raises. It is a restriction that the prosecution uses against a self-defense claim. If a jury finds the fight was by agreement, you cannot say you were simply protecting yourself from an attacker, because you were a willing participant.
Where the "legal in two states" idea comes from
Search results often say that only two states recognize mutual combat. One state-by-state ranking lists Texas and Washington as the two, and also notes that even there the rule is a narrow defense and not a right to fight. California is not on that list. A viral claim that "two adults can legally agree to fight" does not apply to a parking-lot argument in Los Angeles.
Treat any summary like that with care. Whether a consent defense helps in another state depends on that state's statutes and case law, and the facts have to fit tightly. In California, none of that helps you.
What the California courts have said
The leading case is People v. Lucky, decided by the California Supreme Court in 1988. The opinion treats voluntary mutual combat outside the rules of a recognized sport as a breach of the peace and says mutual consent does not excuse it. The practical result: two adults who agree to fight can each be charged with battery, even when each wanted the fight.
There is one exception that people often miss. Organized, regulated sport, such as a licensed boxing match, is a different setting with its own rules. A backyard bet, a school-parking-lot challenge or a "let's settle this outside" exchange outside a bar does not qualify.
How charges arise from a fight both people agreed to
A battery under California law is any willful and unlawful use of force or violence on another person. The statute that sets the punishment for the basic offense, Penal Code 243(a), provides for a fine of up to $2,000, up to six months in county jail, or both. For more on how the offense is defined and defended, see our page on PC 242 battery.
Charges climb quickly depending on what happened:
| Situation | What it can change |
|---|---|
| Simple fistfight, no injury | Misdemeanor battery under PC 242 and 243(a) |
| Serious bodily injury to the other person | A more serious charge such as PC 243(d) |
| The other person is a peace officer | Enhanced penalties, see PC 243(b) |
| The other person is a spouse or partner | Domestic battery, see PC 243(e)(1) |
| A weapon or serious force is used | Possible assault with a deadly weapon or felony charges |
Two features of fight cases make them hard. First, when police arrive they usually find two injured people and two competing stories. Second, the prosecutor often charges both people and lets the case sort itself out. If you are one of the people charged, the fact that the other person also threw punches does not end your case.
Withdrawal: the one route back to self-defense
The jury instruction gives a way back to a self-defense claim even after you agreed to fight. According to the instruction, you must meet three conditions:
- You actually and in good faith try to stop fighting.
- You make that clear to your opponent, by words or by conduct.
- You give the opponent a chance to stop fighting.
If you do all three and the other person keeps attacking, you have the right to defend yourself again. It is a stricter standard than most people think. Dropping your hands, walking away mid-swing or going quiet is not always enough if the other person could not reasonably tell you were done.
There is a second way back. If a fight that began with fists suddenly escalates, for example one person pulls a knife or a gun when nobody expected anything but a fistfight, the person facing that sudden force can defend themselves without first trying to withdraw. The instruction describes that situation specifically, and it is the kind of fact that is usually contested in court.
It also helps to know the broader self-defense rule. Penal Code 197 covers lawful defense when there is reasonable ground to fear a felony or great bodily injury. Force has to be proportionate to the threat. It is not a license to keep hitting someone who has stopped.
Initial aggressor versus mutual combatant
The same jury instruction covers a person who started the fight. If you were the first aggressor and your victim fights back, you can only claim self-defense by following the same withdrawal steps. Disputes over who started things and whether the other person really agreed are often where cases turn.
These are some of the facts that matter:
- Did anyone say "let's go" or "come at me"? Text messages and social media posts can prove or disprove an agreement.
- Who walked toward whom, and who first removed jackets, put down phones or squared up?
- Did one person try to leave, and was he or she followed?
- Were there weapons, or a group of friends who joined in?
- What do surveillance cameras, doorbell videos and bystander clips actually show?
Common misconceptions
"We both agreed, so nobody can press charges." In California the state, not the other person, files criminal charges. Even if the other person says they do not want to cooperate, a prosecutor can still proceed with video, witnesses and police reports.
"If I take a swing back, it is automatically self-defense." Not if a jury concludes you were a willing participant from the start.
"A signed agreement or a fight on camera makes it legal." It more likely becomes evidence against you.
"I can carry pepper spray for a fight." Pepper spray is lawful for self-defense only within limits. Penal Code 22810 allows it for self-defense purposes, with restrictions that include an aerosol format and a net weight cap of 2.5 ounces. Using it as a weapon in a brawl you agreed to is a different story and can lead to additional charges.
Our perspective on fight cases
We see the same pattern again and again in Los Angeles County. Someone was in a fight that felt mutual, maybe a friend, a neighbor or a stranger outside a bar, and assumed that because both sides took part nothing could happen to them. Then a letter arrives, or detectives call, and the first instinct is to explain everything on the phone. That explanation is often the strongest evidence the prosecution gets.
Our approach is to start with the facts before any statements are made. We look at who said what before the fight, what video exists, and whether there was a moment when someone tried to stop. We also look at how the stop was made and how the police gathered their evidence. If an officer searched a phone, a car or a home without a valid basis, that can be challenged under the constitution. Because we are in Los Angeles courtrooms often, we also know how local prosecutors approach these filings and where there is room to ask for a reduction, a diversion or an early resolution before charges are filed.
The best outcome in these cases is often decided in the first days, before a complaint is filed. Pre-file intervention, where we present the facts and the mitigating circumstances to the prosecutor before a case is charged, can change the direction of a case.
— Jake
What to do if you were in a fight and police are involved
- Do not explain or apologize to police or to the other person. Statements like "we were just fighting" can be used to show consent, and that undercuts self-defense.
- Say you want a lawyer, then stop talking. You can give your name, but you do not have to describe what happened.
- Preserve evidence. Save texts, voicemails, photos of your injuries and the names of anyone who saw what happened. Do not delete anything, even if it looks bad.
- Get medical attention and document injuries. Records can show who was hurt and how, which matters for a self-defense or withdrawal argument.
- Do not contact the other person to "get your stories straight." That can look like witness tampering and cause new problems.
- Call a criminal defense attorney quickly. If you have not been charged yet, there may be a chance to resolve things before a case is filed.
How a defense lawyer can approach a mutual combat case
The defense depends on the facts, but these are the main lines of attack:
- Self-defense through withdrawal. Show that you tried to stop, communicated it and gave the other person a chance to stop, and that they kept attacking.
- Disputing the agreement. The prosecution has to prove consent. A shouted insult or a tense argument is not necessarily an agreement to fight.
- Sudden escalation. Show that the other person suddenly used far more force than the fight called for.
- Constitutional challenges. Challenge an unlawful stop, arrest or search, and the evidence that came from it.
- Credibility and evidence problems. Inconsistent witness accounts, missing video or exaggerated injuries can all weaken the case.
- Negotiated outcomes. Where the facts are difficult, diversion, a reduction to a lesser charge, or a resolution that avoids a conviction may be possible.
A conviction for battery can also affect work, professional licenses and immigration status, so how a case ends matters well beyond the sentence. If you have a past conviction, ask about expungement options once your case is resolved.
Talk to a Los Angeles criminal defense lawyer
If you were arrested after a fight, or you think you are under investigation, Rubin Law, P.C. handles assault, battery, felony and misdemeanor defense across Los Angeles County, and we can work on pre-file intervention before charges are filed. You can see everything we handle on our criminal defense page, or reach us through rubinlawpc.com. If the fight involved a partner or family member, read about our domestic violence defense as well. For more on assault defenses, see our guide on assault defenses in California.
FAQ
Is mutual combat legal in California?
No. California courts hold that a fight by consent is still a breach of the peace, and consent is not a defense to battery. Both people can be charged.
Can I claim self-defense if I agreed to the fight?
Only in limited situations. You generally have to try in good faith to stop, make that clear to the other person and give them a chance to stop. A sudden jump to deadly force can also change the analysis. A judge or jury decides whether the facts meet that standard.
What states still have mutual combat?
Some rankings list Texas and Washington as the only two states where a consent-based defense exists, and say even there it is narrow. Those rules do not apply in California, and you should not rely on a summary like that for any state without checking the actual law.
What is the penalty for a fistfight in California?
Simple battery under Penal Code 243(a) carries a fine of up to $2,000, up to six months in county jail, or both. Serious injury, a weapon or a protected victim such as a peace officer can lead to far more serious charges.
Sources
- People v. Lucky (1988), California Supreme Court
- CALCRIM No. 3471, Mutual Combat or Initial Aggressor
- California Penal Code 243
- California Penal Code 197
- California Penal Code 22810
- Mutual Combat States ranking