Quick Answer
California treats “assault” (PC § 240) and “battery” (PC § 242) as distinct offenses with different elements. Simple assault and simple battery are misdemeanors, assault with a deadly weapon (PC § 245) is a wobbler that can be charged as a strike, battery causing serious bodily injury (PC § 243(d)) is a wobbler. Self-defense, defense of others, mutual combat, lack of intent, and witness credibility are the dominant defenses. Diversion under PC § 1001.95 is available for non-DV simple battery but excluded for many serious variants.
Key Takeaways
- PC § 240, simple assault: unlawful attempt with present ability to commit a violent injury. Misdemeanor, no injury required.
- PC § 242, simple battery: any willful unlawful touching, however slight. Misdemeanor.
- PC § 243(d) — battery causing serious bodily injury. Wobbler.
- PC § 243(e)(1) — battery on a spouse/cohabitant/dating partner (DV). Misdemeanor.
- PC § 245(a)(1) — assault with a deadly weapon. Wobbler, strike if convicted as felony.
- PC § 245(a)(4) — assault by means likely to produce great bodily injury. Wobbler, strike-eligible.
- Self-defense (CALCRIM 3470) and defense of others (3471) are complete defenses.
- GBI enhancement under PC § 12022.7 adds 3 years and may trigger strike priors.
Assault vs. battery, the basic distinction
In California, “assault” is the attempt; “battery” is the completed touching. Under PC § 240, assault is an unlawful attempt, coupled with present ability, to commit a violent injury on another person. Under PC § 242, battery is any willful and unlawful use of force or violence on another person, and “force” can be as little as offensive touching.
The common charges and their consequences
PC § 240, Simple Assault (Misdemeanor)
Maximum 6 months county jail and/or $1,000 fine. No injury required.
PC § 242, Simple Battery (Misdemeanor)
Maximum 6 months county jail and/or $2,000 fine. Any unwanted physical contact, pushing, grabbing, spitting, qualifies.
PC § 243(d) — Battery Causing Serious Bodily Injury (Wobbler)
Felony: 2, 3, or 4 years state prison. Misdemeanor: up to 1 year. “Serious bodily injury” (PC § 243(f)(4)) means a serious impairment of physical condition, loss of consciousness, concussion, bone fracture, protracted loss/impairment of function.
PC § 245(a)(1) — Assault With a Deadly Weapon (Wobbler)
Felony: 2, 3, or 4 years state prison, strike under PC § 1192.7(c)(31). Misdemeanor: up to 1 year. Deadly weapons can include knives, broken bottles, vehicles, baseball bats, or even a hand or fist used with great force (depending on the manner).
PC § 245(a)(4) — Assault by Force Likely to Produce GBI (Wobbler)
Felony: 2, 3, or 4 years state prison, strike if GBI is found. Distinct from § 245(a)(1) — no weapon required, but the force itself must be likely to produce great bodily injury.
PC § 243(e)(1) — Spousal/Dating Battery (DV Misdemeanor)
Up to 1 year county jail. Triggers 52-week batterer’s program under PC § 1203.097. Federal 10-year firearm prohibition under 18 U.S.C. § 922(g)(9). See our DV defense page for more.
Enhancements that change the calculus
- GBI enhancement (PC § 12022.7) — adds 3 to 6 years, converts the underlying offense to a strike if not already.
- Weapon use enhancement (PC § 12022 / § 12022.5) — 1-10 years depending on weapon and conduct.
- Hate crime enhancement (PC § 422.7) — adds 1-3 years if offense was committed because of protected characteristic.
- Protected victim enhancements (PC § 243(b)/(c)) — battery on peace officer, school employee, transit operator, healthcare worker.
Defenses that work
Self-defense
Self-defense is a complete defense if the defendant (1) reasonably believed in imminent danger of bodily injury, (2) believed force was necessary to defend, and (3) used no more force than reasonably appeared necessary (CALCRIM 3470). The defendant’s reasonable belief is judged from their perspective at the time, not in hindsight.
Defense of others
Same elements as self-defense, but for defense of a third person (CALCRIM 3471). The defendant must reasonably believe the third person faced imminent danger.
Mutual combat
If both parties were in a mutual fight, the defendant retains a right to self-defense if they tried to stop fighting and the other party persisted (CALCRIM 3471).
Lack of willfulness
Both assault and battery require willful conduct. Accidental contact, a stumble, a recoil, an unintentional gesture, is a defense. CALCRIM 915 (battery) and 915-941 (assault) elements.
Lack of present ability
Assault requires present ability. Verbal threats without the immediate capacity to carry them out are not assault, they may be PC § 422 criminal threats, but that’s a different statute with different elements.
Identification problems
Bar fights, gas station incidents, road rage, these cases often turn on cross-racial identification, dim lighting, intoxicated witnesses, and absent video. Cross-examination on the conditions of observation and the suggestive nature of field show-ups often defeats the prosecution.
Insufficient injury for § 243(d) / § 12022.7
“Serious bodily injury” and “great bodily injury” are not the same. Bruising, soreness, or minor cuts may not qualify. Medical records and photographs matter.
Diversion availability
- PC § 1001.95 misdemeanor diversion: Available for simple assault/battery, but NOT for DV variants (PC § 243(e)(1), PC § 273.5, PC § 243.4).
- PC § 1001.36 mental health diversion: Potentially available for assault offenses if a qualifying disorder played a significant role.
- PC § 1001.80 military diversion: Available for service members on misdemeanor assault charges.
What to do right now
- Save photos of your own injuries, booking photo, urgent care visit, anything documenting defensive injuries.
- Preserve any video, security cameras at the scene, witness phone video, social media posts.
- Get the names of every witness who saw the start of the incident.
- Do NOT discuss the case with the alleged victim, even to apologize.
- Get counsel on board before arraignment, especially for any § 245 felony filing.
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