The information provided in this article is for educational and informational purposes only and does not constitute legal, financial, or tax advice. No attorney-client relationship is formed by reading this content. Laws and regulations vary by jurisdiction and change frequently; always consult with a qualified professional regarding your specific situation. The author and publisher assume no liability for any actions taken based on this information.
- Assault is defined differently across the United States
- Assault and battery are separate concepts in common law but may be merged in statutes
- Assault charges are commonly classified by seriousness
- Federal assault law is limited to federal jurisdiction
- Assault cases often move through a standard criminal process but state procedures vary
- Evidence issues and legal definitions often drive how an assault is charged
- Self defense and related concepts exist in criminal law but vary by state
- Appeals and other review processes depend on the court system
- Sources
Key Facts
- Federal and state: The word “assault” is not defined the same way everywhere, and some states combine assault and battery into a single offense called assault.
- State level: States often separate lower-level assault offenses from more serious “aggravated” versions, but the exact labels and elements vary by state.
- Federal level: Federal assault charges commonly depend on a federal “hook,” such as the location being within federal jurisdiction or the alleged victim being a protected federal official.
- Federal level: Federal law includes an assault statute for conduct “within the special maritime and territorial jurisdiction of the United States.”
- Federal level: Federal law also criminalizes forcibly assaulting, resisting, or impeding certain federal officers and employees.
- Federal and state: In many legal systems, assault can involve threatened or attempted harm, while battery generally focuses on harmful or offensive physical contact, but statutes may use different definitions.
- Federal and state: Criminal convictions generally require proof beyond a reasonable doubt, which is the highest burden of proof in law.
- Federal and state: Appeals are generally decided by appellate courts that review lower-court decisions and usually decide cases with judges rather than juries.
As of February 2026: This article includes federal statute citations and federal maximum penalties that can change if Congress amends the law.
Assault is defined differently across the United States
In everyday life, people often use “assault” to mean any physical attack, but criminal laws are more specific and can differ sharply from state to state.
In many legal descriptions, assault is tied to an intentional act that puts another person in reasonable fear (or apprehension) of imminent harmful or offensive contact, and physical injury is not always required for the legal concept of assault.
Some jurisdictions describe assault as an “attempted battery,” while other jurisdictions focus more on creating imminent fear of being harmed, and the same word can point to different legal elements depending on the statute.
Assault and battery are separate concepts in common law but may be merged in statutes
Historically, assault and battery were described as related but different: assault focused on conduct that causes immediate apprehension of harmful or offensive contact, and battery focused on the actual harmful or offensive contact itself.
Modern state criminal codes do not always follow those historical labels, and some states use “assault” as the name for what older sources might have called assault, battery, or both.
Assault charges are commonly classified by seriousness
In state criminal law, “classification” usually refers to how a charge is categorized for charging and sentencing purposes, such as whether it is a misdemeanor-level offense or a felony-level offense, and whether the statute creates degrees (for example, different levels of assault).
One common pattern is a lower-level offense often called “simple assault” (or something similar) and a more serious offense often called “aggravated assault” (or something similar), but the elements of those offenses are set by each state’s statutes.
States also vary on how they label offense levels, including whether they use letter or number classes, degree systems, or crime-specific penalty ranges.
At the federal level, a “felony” is defined as an offense punishable by a maximum term of imprisonment of more than one year under 18 U.S.C. § 3156(a)(3), while states may use different labeling systems or definitions in their own codes.
Federal assault law is limited to federal jurisdiction
Federal assault charges are not a general replacement for state assault law, because federal criminal law generally applies only when there is federal jurisdiction, such as certain locations or certain protected people.
One federal assault statute is 18 U.S.C. § 113, which covers assaults within the special maritime and territorial jurisdiction of the United States and sets different maximum penalties for different categories of assault, including “simple assault” and more serious forms.
The “special maritime and territorial jurisdiction of the United States” is defined in 18 U.S.C. § 7, and it can include certain waters, certain aircraft, and certain lands reserved or acquired for use of the United States, among other listed categories.
Another federal assault statute is 18 U.S.C. § 111, which addresses forcibly assaulting, resisting, opposing, impeding, intimidating, or interfering with specified federal officers or employees, and it includes higher maximum penalties in situations such as physical contact, intent to commit another felony, use of a deadly or dangerous weapon, or infliction of bodily injury.
Assault cases often move through a standard criminal process but state procedures vary
Even when two cases involve similar alleged conduct, criminal procedure can look different depending on whether the case is in state court or federal court, and depending on the state’s own court rules and statutes.
In general terms, a criminal case can involve investigation, a decision to charge, early court hearings where charges and rights are addressed, and later stages that can include motions, negotiated resolutions, trial, and sentencing.
In federal court, the rules for an “initial appearance” are set out in Federal Rule of Criminal Procedure 5, including the concept that an arrested person is taken before a magistrate judge without unnecessary delay and that the court addresses certain advisements at that appearance.
In federal court, the rules for an “arraignment” are set out in Federal Rule of Criminal Procedure 10, which describes arraignment as including ensuring the defendant has a copy of the charging document, reading (or stating the substance of) the charge, and asking for a plea.
Evidence issues and legal definitions often drive how an assault is charged
Assault charges often depend on fine details, including what the statute requires for intent, what counts as “imminent” harm, what contact (if any) occurred, and what level of injury is alleged.
Because states use different wording, the same event can be labeled differently across jurisdictions, and a term like “assault” can cover different conduct depending on how a particular statute is written.
In many jurisdictions, prosecutors must prove each required element of the offense beyond a reasonable doubt at trial, while other hearings can involve different legal standards depending on the issue being decided.
Some cases include disputes about whether conduct was accidental or intentional, whether the alleged victim’s fear (or apprehension) was reasonable under the circumstances, and whether the accused had the present ability to carry out an immediately threatened contact where that element exists in the jurisdiction.
Self defense and related concepts exist in criminal law but vary by state
Criminal law recognizes several defenses and justification concepts in general, and assault-related cases can sometimes involve issues such as self-defense, defense of others, or consent, depending on the statute and the facts asserted in court.
How these concepts are defined and when they apply varies by state, and some jurisdictions also treat related issues differently in misdemeanor versus felony cases.
Appeals and other review processes depend on the court system
In both state and federal systems, an appeal usually means a higher court reviews what happened in a lower court case, and appellate courts typically decide cases with judges rather than juries.
Appellate procedure generally focuses on reviewing legal issues and trial-court rulings, and the available paths and standards of review vary by jurisdiction and by the type of issue being raised.
