California Penal Code 240 defines assault as an unlawful attempt, coupled with a present ability, to commit a violent injury on another person.1California Legislative Information. California Penal Code 240 No physical contact is required. A conviction is a misdemeanor carrying up to six months in county jail and a fine of up to $1,000, though penalties rise when the victim is a peace officer, firefighter, or other protected worker, and the charge changes entirely when a weapon or serious force is involved.
What the Prosecution Has to Prove
The statute itself is a single sentence. California’s standard jury instruction, CALCRIM No. 915, breaks it into four elements that must be proved beyond a reasonable doubt:
- You did an act that by its nature would directly and probably result in the application of force to another person.
- You acted willfully, meaning on purpose. You don’t have to have intended to hurt anyone or to break the law.
- You were aware of facts that would lead a reasonable person to realize the act would probably result in force being applied.
- At the moment you acted, you had the present ability to apply that force.
One point surprises people: the prosecution doesn’t need to prove you actually intended to use force.2Justia. CALCRIM No. 915 Simple Assault Throwing a punch at someone within reach is assault whether or not you expected to connect. The present-ability requirement cuts the other way. Someone yelling threats from across a parking lot usually hasn’t committed assault, because they can’t follow through from that distance. Verbal threats on their own, without an accompanying physical act and the ability to carry it out, don’t meet the definition.
Assault Is Not the Same as Battery
In everyday speech people use the two words interchangeably. California law treats them as separate crimes. Section 240 covers the attempt to use force. Section 242 covers the actual use of force or violence on another person.3California Legislative Information. California Penal Code 242 Swing and miss, assault. Swing and connect, battery. Battery carries a slightly higher base fine, up to $2,000, with the same six-month county jail maximum.4California Legislative Information. California Penal Code 243 The two are often charged together, but a 240 charge can stand on its own even when nobody was touched.
Penalties for a Simple Assault Conviction
Simple assault under Penal Code 240 is a misdemeanor. Penal Code 241(a) sets the maximum punishment at six months in county jail, a fine of up to $1,000, or both.5California Legislative Information. California Penal Code 241
Many first-time offenders who plead guilty or no contest receive informal probation rather than jail. Courts often attach conditions such as community service or anger management, and may issue a protective order keeping you away from the alleged victim.
Higher Penalties When the Victim Is a Protected Worker
Section 241 raises the penalty when the victim belongs to a protected category and was performing their duties at the time. The prosecution has to show you knew, or reasonably should have known, the person’s role.
Assault on a parking control officer doubles the fine to $2,000, with the same six-month jail cap.5California Legislative Information. California Penal Code 241 Assault on a peace officer, firefighter, EMT, lifeguard, process server, traffic officer, code enforcement officer, animal control officer, search and rescue member, or emergency room healthcare worker carries up to $2,000 and up to one year in county jail. The category also reaches physicians and nurses providing emergency care outside a hospital. The doubled jail exposure is the main shift from a standard 240 charge.
When a Weapon or Serious Force Changes the Charge
Section 240 is always a misdemeanor. The moment a weapon or force likely to cause great bodily injury enters the picture, the charge moves to Penal Code 245 and can become a felony.6California Legislative Information. California Penal Code 245 Assault with a deadly weapon other than a firearm, and assault by means of force likely to produce great bodily injury, are wobblers that a prosecutor can file as either a misdemeanor or a felony, with felony exposure of two, three, or four years in state prison and fines up to $10,000. Firearm versions carry their own tiers, climbing with semiautomatic weapons and higher still for assault weapons or machine guns. Picking up a bottle during an argument is enough to move a case out of 240 and into 245 territory.
Defenses That Commonly Apply
Self-defense and defense of others is the most frequently raised defense. CALCRIM No. 915 lists it as something the prosecution may have to disprove.2Justia. CALCRIM No. 915 Simple Assault You generally need to show that you reasonably believed you or someone else faced an imminent threat of bodily harm, and that the force you used was proportional to the threat. Shoving someone who is winding up to punch you looks very different from hitting someone who insulted you earlier.
Because the statute requires a willful act, genuine accident is a defense. Bumping someone while turning a corner isn’t a willful act aimed at applying force. Convincing a jury depends on context: an accidental elbow in a crowded bar reads differently than an “accidental” shove in the middle of a fight.
If you lacked the present ability to carry out harm, that element fails outright. Someone restrained by others, separated by a locked door, or standing well out of reach hasn’t committed assault even when the words were threatening.1California Legislative Information. California Penal Code 240
Consent is a narrower defense. If the alleged victim voluntarily agreed to the conduct, as in contact sports or clearly mutual combat, the act may not be unlawful. Courts set a high bar: the consent has to be clearly established, and the conduct can’t go beyond what was agreed to.
Consequences Beyond Jail and Fines
A conviction under Section 240 triggers a ten-year ban on owning or possessing firearms under Penal Code 29805.7California Department of Justice. Firearms Prohibiting Categories If a firearm was involved in the assault, the ban becomes lifetime. For gun owners and anyone who carries a firearm for work, that consequence often outweighs the sentence itself.
A conviction also lands on your criminal record and shows up on background checks for jobs, housing, and professional licensing. Non-citizens should take the immigration analysis seriously. Simple assault is generally not treated as a “crime of violence” for deportation purposes under federal immigration law, but the outcome depends on the specific facts and the wording of any plea. Talk to an immigration attorney before entering a plea.
How Long Prosecutors Have to File
Because simple assault is a misdemeanor, Penal Code 802 gives prosecutors one year from the date of the incident to file charges. Miss that deadline and the case can’t move forward. Related felony charges, including assault with a deadly weapon under Section 245, carry longer limitations periods, so a case that is too old to charge as misdemeanor assault may still be prosecutable under a different section.