Domestic assault and battery charges in California fall under three escalating statutes: simple assault, domestic battery, and corporal injury on a spouse or partner. The charge you face depends on whether there was a threat, unwanted contact, or contact that left any visible mark. Penalties run from up to a year in county jail for a misdemeanor to five years in state prison when prior convictions are in play, and a conviction brings consequences that reach well past sentencing, including a lifetime federal firearm ban, a presumption against child custody, and possible deportation if you are not a citizen.
The Three Charges and What Separates Them
California splits domestic violence into three offenses, each with different elements the prosecutor has to prove.
Penal Code 240 assault is an attempt to use force on another person when you have the present ability to carry it out.1California Legislative Information. California Penal Code 240 No contact needed. Raising a fist at a partner while within striking distance can qualify. The charge turns on the threat and your ability to follow through, not on whether you touched anyone.
Penal Code 242 battery requires actual contact: any willful and unlawful use of force against someone.2California Legislative Information. California Penal Code 242 The contact doesn’t need to cause pain or leave a mark. Grabbing an arm, a shove, or a poke to the chest can meet the standard if done in anger or without consent. Intent is what matters. An accidental bump during an argument isn’t battery; a deliberate push is.
Penal Code 273.5 corporal injury is the most serious of the three. It applies when physical contact leaves a “traumatic condition,” which the statute defines broadly as any wound or injury, minor or serious, caused by physical force.3California Legislative Information. California Penal Code 273.5 A bruise, a scratch, redness, or a sprained wrist all count. The statute specifically covers injuries from strangulation or suffocation, which prosecutors treat with particular seriousness because of the correlation between nonfatal strangulation and later lethal violence.
Who Counts as a Domestic Partner
What turns an ordinary assault or battery into a domestic charge is the relationship. California’s domestic violence statutes apply when the other person is or was your spouse, someone you live or lived with, someone you are or were dating, or someone with whom you share a child.3California Legislative Information. California Penal Code 273.5 Penal Code 243(e)(1) adds fiancés.4California Legislative Information. California Penal Code 243
Cohabitation is the piece that trips people up. Courts look at whether the relationship resembled a household: shared finances, a sexual relationship, joint use of property, and how long the arrangement lasted. Marriage is not required, and you don’t have to have publicly acknowledged the relationship. If you share a child, the domestic element is satisfied even if you never lived together.
Jail, Prison, and Fines
Domestic battery under Penal Code 243(e)(1) is always a misdemeanor. Conviction carries up to one year in county jail and a fine of up to $2,000.4California Legislative Information. California Penal Code 243 This is the charge when there is no visible injury, such as a shove or a slap that leaves no mark.
Corporal injury under Penal Code 273.5 is a “wobbler.” Prosecutors can file it as either a misdemeanor or a felony depending on the facts. As a misdemeanor, the maximum is one year in county jail and a $6,000 fine. As a felony, the sentence jumps to two, three, or four years in state prison, plus the same $6,000 fine.3California Legislative Information. California Penal Code 273.5 Severity of the injury, use of a weapon, and your prior record all push toward a felony filing.
When a Prior Conviction Raises the Stakes
A prior violent conviction within the past seven years changes the math. If you are convicted of corporal injury and have a prior for a qualifying offense, including a previous corporal injury charge, sexual battery, or assault with a deadly weapon, the prison term rises to two, four, or five years, and the maximum fine doubles to $10,000. If the prior was specifically for misdemeanor domestic battery under 243(e), the prison range stays at two, three, or four years, but the fine still reaches $10,000.3California Legislative Information. California Penal Code 273.5 This is where the real pressure lands on repeat offenders, and it is why defense attorneys fight so hard to keep a first offense off the record.
Diversion Is Not an Option
California’s general misdemeanor diversion program under Penal Code 1001.95 explicitly excludes domestic violence offenses.5California Legislative Information. California Penal Code 1001.95 In other misdemeanor cases, a judge can pause proceedings and dismiss charges after conditions are met. That path is closed here. Once charges are filed, the case resolves by plea or trial.
Probation and the Mandatory Batterer’s Program
Most domestic violence convictions end in probation rather than straight custody, but the conditions are demanding. Penal Code 1203.097 requires a minimum probation period of 36 months whenever the victim qualifies as a domestic partner under the Family Code.6California Legislative Information. California Penal Code 1203.097 That’s three full years, even though California shortened probation for most other offenses.
The core requirement is a year-long batterer’s intervention program with weekly two-hour sessions.6California Legislative Information. California Penal Code 1203.097 The program has to be finished within 18 months, and only three excused absences are allowed over the full course. This applies to both felony corporal injury and misdemeanor domestic battery. Penal Code 243(e)(1) independently mandates the same program whenever probation is granted on a domestic battery conviction.4California Legislative Information. California Penal Code 243
Other mandatory conditions include a $500 program fee (reducible or waivable based on ability to pay), community service, and a criminal protective order shielding the victim from further contact.6California Legislative Information. California Penal Code 1203.097 Any violation gets reported to the prosecutor, and failing the program or breaking a probation condition lets the court impose the original suspended jail or prison term.
How Arrest and Prosecution Work
Officers in California have broad warrantless arrest authority in these cases. Under Penal Code 836(d), when an officer has probable cause to believe someone committed assault or battery against a current or former spouse, cohabitant, dating partner, co-parent, or certain other family members, the officer can arrest on the spot, even without having witnessed the incident. For violations of a protective order, arrest is mandatory on probable cause.7California Legislative Information. California Penal Code 836
When both parties show injuries, the officer has to identify the “dominant aggressor” before arresting. The statute directs officers to weigh the history of violence between the parties, whose threats created fear of injury, and whether either acted in self-defense.7California Legislative Information. California Penal Code 836 The dominant aggressor is the most significant one, not necessarily whoever struck first.
Once charges are filed, most California prosecutors follow a no-drop policy. The case moves forward even if the victim asks to dismiss. The prosecutor controls that decision, not the victim. When victims won’t testify, prosecutors lean on other evidence: photographs of injuries, 911 recordings, medical records, statements made to responding officers in the moment, and testimony from neighbors or other witnesses. Recanting or refusing to cooperate rarely stops a prosecution.
Protective Orders You’ll Face
Three kinds of protective orders can show up after a domestic violence incident.
An Emergency Protective Order can be requested by the responding officer and signed by a judge at any hour. It takes effect immediately and lasts up to five business days or seven calendar days, whichever is shorter.8California Courts. Guide to Protective Orders During that window, the restrained person usually has to leave the shared home and stay away from the victim.
A Domestic Violence Restraining Order follows through civil court and can last up to five years after a hearing.9California Courts. The Restraining Order Process for Domestic Violence Cases These commonly require the restrained person to move out, keep a specified distance from the victim, and surrender firearms.
A criminal protective order is issued by the criminal court as a condition of release or probation under Penal Code 1203.097.6California Legislative Information. California Penal Code 1203.097 Violating any of these orders is a separate misdemeanor carrying up to a year in county jail and a $1,000 fine. A second violation within seven years that involves violence or a credible threat can be charged as a felony with 16 months, two years, or three years in state prison.10California Legislative Information. California Penal Code 166
Defenses That Actually Work
Domestic violence cases are not open-and-shut for prosecutors, and a handful of defenses come up again and again.
Self-defense is the most common. California law allows reasonable force to protect yourself from imminent harm. If the other person was the initial aggressor and your response was proportionate, you have a valid defense. Injuries on the defendant, defensive marks on the alleged victim’s hands or forearms, and witness statements about who started the confrontation all matter. So does proportionality: blocking a punch is proportionate, meeting a shove with a weapon is not.
Lack of intent defeats both battery and corporal injury charges, because both require willful conduct. If the contact was genuinely accidental, such as a bump during a heated argument or a reflexive movement while pulling away, the prosecution has not met its burden. Injuries from a mutual struggle where neither person meant to cause harm can fall here too.
False or exaggerated allegations surface more often in domestic cases than in most other areas of criminal law, especially during a breakup or custody dispute. Text messages, social media posts, prior inconsistent statements, and evidence of a motive to fabricate all cut into credibility. For corporal injury charges, the defense can also challenge whether the injury really constitutes a “traumatic condition” or whether it has another explanation, such as a sports injury or accident.
Constitutional violations during the investigation can get evidence suppressed. Statements taken without proper advisement of rights, illegal searches of a phone or home, and one-sided police work all give you grounds to challenge the case.
Firearms, Custody, and Immigration
The collateral consequences of a conviction often outlast the sentence.
A domestic violence conviction triggers a federal lifetime ban on possessing firearms or ammunition under 18 U.S.C. 922(g)(9).11Office of the Law Revision Counsel. 18 United States Code 922 The ban applies to misdemeanor domestic battery convictions, not just felonies, and lasts unless the conviction is expunged, pardoned, or set aside. Violating it is a separate federal felony. California piles on its own firearm restrictions, and a civil restraining order independently requires surrender of all firearms. For people who carry guns for work, this consequence alone can end a career.
Family court follows close behind. Under California Family Code 3044, if a court finds that a parent seeking custody committed domestic violence within the previous five years, a rebuttable presumption kicks in that awarding custody to that parent would be detrimental to the child. The court starts from the position that you should not have custody, and you have to prove otherwise. Overcoming the presumption takes more than a promise to do better. The court looks at completion of the batterer’s program, any ordered substance abuse or parenting classes, probation and protective order compliance, and whether there has been any further violence.12California Legislative Information. California Family Code 3044 The statute also bars the court from using the general preference for frequent contact with both parents to hand custody back to the perpetrator. This regularly blindsides people who assumed the criminal case and the custody case were unrelated.
For noncitizens, a domestic violence conviction is one of the most dangerous criminal outcomes possible. Federal immigration law makes any noncitizen convicted of a “crime of domestic violence” deportable, regardless of immigration status or how long they have lived in the United States. The statute defines the term broadly, covering any crime of violence against a spouse, former spouse, co-parent, cohabitant, or anyone else protected under domestic violence laws.13Office of the Law Revision Counsel. 8 United States Code 1227 A conviction for violating a protective order is independently listed as a deportation ground.
Expungement and Its Limits
California does allow expungement of domestic violence convictions under Penal Code 1203.4, but with real limits. You must have completed every term of probation, including the full batterer’s program, community service, and payment of fines and fees. You cannot be currently serving a sentence or on probation for another offense. If probation was denied, you have to wait one year after conviction before applying.
An expungement withdraws the guilty plea and dismisses the case, which helps with most private employment background checks. It does not restore your right to possess firearms. Because 18 U.S.C. 922(g)(9) and California state law both tie the firearm ban to the underlying conduct, the practical bar often survives the expungement. For immigration, a California expungement does not erase the conviction either. Federal immigration authorities still treat the original conviction as valid for deportation purposes. If you are weighing an expungement, understand those boundaries before assuming the record is truly cleared.