Assault, in legal terms, is an intentional act that causes another person to reasonably believe that harmful or offensive physical contact is about to happen to them. What is assault under the law may surprise most people: no one has to be touched, hit, or physically hurt for an assault to occur. The threat itself is the harm the law recognizes, which is why someone can be charged with assault for raising a fist, pointing a weapon, or lunging at another person even if they never make contact.
Assault Is the Threat, Not the Contact
The single biggest source of confusion about assault is its relationship to battery. People use the words interchangeably in everyday speech, but the law treats them as two different acts.
Assault is the threat — an intentional act that makes someone reasonably believe harmful contact is about to happen. Battery is the follow-through — actual harmful or offensive physical contact. Someone who swings a fist and misses has committed assault. Someone who swings and connects has committed battery. Both can happen in the same incident, which is why courts often pair them as “assault and battery,” but either can exist on its own.
Point a loaded weapon at someone and never fire, and that is assault, not battery. Strike someone from behind who never saw it coming, and that could be battery without assault, because the victim had no warning and felt no apprehension. Many states have merged the two concepts into a single assault statute covering both the threat and the contact, while others keep them separate. The Model Penal Code, which shaped criminal codes across the country, uses “assault” to cover both.
The Three Things That Make an Act Assault
Whether a case is criminal or civil, an assault claim rests on three elements. All three must be present. Miss one, and the claim collapses.
An Intentional Act
The person accused must have acted deliberately. Under the Restatement (Second) of Torts, a person is liable for assault when they act intending to cause harmful or offensive contact, or intending to cause the immediate fear of such contact.1OpenCasebook. Restatement (Second) of Torts – Assault “Intent” means the act was not accidental; motive is irrelevant. Someone who raises a bat over your head as a joke, never planning to swing, has still committed assault if a reasonable person in your position would have feared being hit. Accidentally startling someone by dropping a heavy object does not qualify, because there was no deliberate act directed at the person.
Reasonable Apprehension
The victim must have genuinely believed harmful or offensive contact was about to happen, and that belief must be one a reasonable person would share under the same circumstances. Courts measure this objectively. The question is not whether this particular person felt afraid, but whether an average person facing the same situation would have felt threatened. Someone who panics at a friendly wave cannot sustain an assault claim. Someone who freezes when a stranger charges at them with clenched fists has a strong one, even if the attacker planned to stop short.
Apprehension is not the same as fear. You do not have to prove you were scared, only that you were aware harmful contact was likely. A trained fighter confronted by someone swinging a pipe might feel no fear at all but still reasonably apprehend that contact is imminent.
Imminence
The threatened contact must be about to happen. This element filters out vague threats and future promises of violence. Telling someone “I’ll get you next week” is not assault, because the danger is not immediate. Walking toward someone with a raised fist while shouting “I’m going to hit you right now” is, because the victim has reason to believe contact will happen within seconds.
When Words Alone Aren’t Enough
A verbal threat on its own almost never satisfies the imminence requirement. The threat generally needs to be paired with some physical act — a gesture, an aggressive advance, a brandished object — that signals the threat is active and capable of being carried out right then.
The person making the threat must also have the apparent ability to follow through. Threatening to punch someone from across a football field, with no weapon and no way to close the distance quickly, would not meet the imminence standard, because no reasonable person would believe the contact was about to happen.
Simple vs. Aggravated Assault
Criminal assault is divided into two tiers based on how dangerous the conduct was.
Simple Assault
Under the Model Penal Code, simple assault occurs when a person attempts to cause or recklessly causes bodily injury, negligently causes injury with a deadly weapon, or uses physical menace to put someone in fear of serious bodily harm.2Internet Archive. Model Penal Code It is a misdemeanor. Under federal law, simple assault carries up to six months of imprisonment, a fine, or both, and up to one year if the victim is under 16.3Office of the Law Revision Counsel. 18 U.S.C. 113 – Assaults Within Maritime and Territorial Jurisdiction State penalties vary, but most treat simple assault as a misdemeanor punishable by up to a year in jail and a fine.
Aggravated Assault
Assault becomes aggravated, and a felony, when the circumstances make the conduct significantly more dangerous. The Model Penal Code identifies two main triggers: attempting to cause or actually causing serious bodily injury under circumstances showing extreme indifference to human life, or using a deadly weapon to cause or attempt to cause bodily injury.2Internet Archive. Model Penal Code
Most states add further aggravating factors. Common ones include:
- Assaulting a police officer, firefighter, emergency medical worker, or other protected individual performing their duties.
- Targeting elderly individuals, young children, or people with disabilities.
- Assaulting a spouse, family member, or intimate partner, which can elevate a misdemeanor to a felony and trigger firearm restrictions and custody consequences.
Under 18 U.S.C. § 113, federal assault with a dangerous weapon carries up to ten years imprisonment, as does assault resulting in serious bodily injury. Assault against a spouse, intimate partner, or dating partner involving strangulation or suffocation carries up to ten years as well.3Office of the Law Revision Counsel. 18 U.S.C. 113 – Assaults Within Maritime and Territorial Jurisdiction
Criminal Case or Civil Lawsuit
The same incident can produce two separate legal actions.
A criminal assault case is brought by the government to punish conduct that threatens public safety. The prosecutor files the case, controls it, and must prove every element beyond a reasonable doubt. Most prosecutions happen under state law, with federal statutes covering assaults in federal jurisdictions such as military installations and federal buildings.
A civil assault case is a private lawsuit. The victim sues the person who threatened them to recover money for the harm caused. A civil case can proceed even if the prosecutor declined to file criminal charges, and a criminal acquittal does not block it. The burden of proof is lower: preponderance of the evidence, meaning the plaintiff must show it is more likely than not that the assault occurred.1OpenCasebook. Restatement (Second) of Torts – Assault
Civil damages typically cover therapy and counseling costs, lost wages, and emotional distress. Because assault by definition involves no physical contact, the damages tend to center on the mental and emotional toll rather than medical bills. When conduct was especially malicious — threats with weapons, targeting of vulnerable people, repeated harassment — courts may add punitive damages on top. Those exist to punish the wrongdoer, not compensate the victim.
Defenses That Can Defeat an Assault Claim
Not every threatening act is legally assault. Several defenses can defeat both criminal charges and civil claims.
Self-Defense
Self-defense is the most commonly raised justification. To succeed, the person claiming it generally must show a reasonable belief of imminent danger and a proportional response. The level of force used has to match the threat faced. Pulling a knife on someone who shoved you at a bar would likely fail the proportionality test. Shoving back might not. The defense usually fails if the defendant started the confrontation. Some states require a person to retreat before using force when retreat is safely possible; others follow stand-your-ground rules that remove the duty to retreat in places where the person has a legal right to be.
Consent
A person who voluntarily agrees to a physical encounter generally cannot later claim assault. This defense most often appears in contact sports: boxers, rugby players, and hockey players accept the risk of contact that is a normal part of the game. Consent has limits, though. It does not cover contact that goes beyond what the activity normally involves, and it typically does not apply when serious bodily injury results or a deadly weapon is introduced. A hockey check is consented-to contact; swinging a stick at someone’s head is not.
Defense of Others and Defense of Property
The principles behind self-defense extend to protecting other people. If you reasonably believe someone else is about to be harmed, you can use proportional force to intervene. Defense of property allows force in some circumstances, but the threshold is higher, and most jurisdictions do not permit deadly force to protect property alone.
How Long You Have to Act
Both criminal charges and civil lawsuits have deadlines, called statutes of limitations. Miss the window and the case cannot go forward, no matter how strong the evidence.
For criminal charges, misdemeanor assault generally must be filed within one to three years of the incident in most states. Felony aggravated assault typically carries longer windows of two to six years. A handful of states set no time limit for certain felonies.
Civil lawsuits for assault have their own separate deadlines, which also vary by state. Most fall in the range of one to three years from the date of the incident, though some states allow longer.
Consequences That Follow a Conviction
An assault conviction can reach well beyond the sentence or civil judgment.
Firearms Restrictions
Federal law permanently prohibits anyone convicted of a felony (any crime punishable by more than one year of imprisonment) from possessing firearms or ammunition.4Office of the Law Revision Counsel. 18 U.S.C. 922 – Unlawful Acts A felony aggravated assault conviction triggers a lifetime federal firearms ban. Misdemeanor assault convictions also trigger the ban when the offense qualifies as a misdemeanor crime of domestic violence, defined as an offense involving the use or attempted use of physical force against a spouse, former spouse, co-parent, cohabitant, or dating partner.5Bureau of Alcohol, Tobacco, Firearms and Explosives. Misdemeanor Crimes of Domestic Violence Prohibitions Violating the federal firearms prohibition is itself a separate crime punishable by up to 15 years in prison.
Employment and Professional Licensing
A criminal record for assault shows up on background checks and can narrow employment options sharply. Industries that involve working with vulnerable populations — healthcare, education, childcare, law enforcement — routinely disqualify applicants with violent offense convictions. Professional licensing boards in fields like nursing, law, and real estate review criminal histories as part of the application process. Most states evaluate applications individually rather than imposing automatic bans, but a violent crime conviction forces the applicant to demonstrate rehabilitation, which can delay or derail licensure.
Protective Orders
Courts frequently issue protective orders (sometimes called restraining orders) in connection with assault cases. In criminal cases, the prosecutor can request a criminal protective order as part of the proceedings, and only a judge can modify or lift it. In civil cases, the victim can petition for a restraining order independently, whether or not criminal charges were filed. Both types typically prohibit the restricted person from contacting the victim, coming within a specified distance of the victim’s home or workplace, and possessing firearms. Violating a protective order is a separate criminal offense that can lead to arrest and additional charges.