What Is Sex Offense Law?

By Super Lawyers staff | Reviewed by Canaan Suitt, J.D. | Last updated on June 20, 2025

This article includes information on sex offenses, unlawful sexual contact, and the penalties associated with this sensitive area of law. Victims of sexual abuse can find immediate help by contacting the National Sexual Assault Telephone Hotline at 800.656.HOPE (4673).

Sex offenses are serious crimes involving unlawful sexual conduct. Examples of sex offenses include indecent exposure, solicitation, sexual assault, statutory rape, and possession of child pornography. These criminal offenses include misdemeanors and felonies at both federal and state law levels.

The legal consequences of sex offenses can be severe and affect you and your family for a long time. You might want to consider speaking with a criminal defense attorney to help you understand your legal options and path forward. The following is a brief overview of different offenses and the offender registry to help you understand the basics before you speak with a lawyer.

An Overview of Sex Offense Law

    Sex offenses and punishments range in seriousness depending on the actions and parties involved. Most sexual offenses fall under state law, though federal law also includes various sexual offenses, principally in Title 18 of the United States Code.

    Generally, these offenses can be divided into crimes against adults and crimes against children. There are also other categories of sexual actions that may be otherwise legal without specific characteristics, such as when the parties are related or exchange sex for money.

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    Sexual Assault

    Most sex crimes committed against adults are under the umbrella of sexual assault. These offenses can range in seriousness from unwanted bodily contact to rape. The exact definitions of the various crimes are different from state to state, but there are some general principles.

    The hallmark of sexual assault is that the actions are taken without the victim’s consent. Traditionally, laws required force and included references to gender. The modern trend has been to remove references to gender. The laws no longer require the victim to fight back and often account for lack of ability to give consent due to incapacitation or impairment.

    Statutory Rape

    Statutory rape is seemingly consensual sex with a child who is legally considered to be too young to consent. The age of consent can vary by state, but most states have set their age of consent at 16 or 17. Traditionally, this is a “strict liability” crime, which means there is no defense available — you would not be able to say you thought the other party was old enough to consent. However, some states now recognize the defense of an honest mistake.

    In some cases, the offender is only slightly older than the minor, and the two are in a consensual sexual relationship. Some states have created laws to address these situations, sometimes called “Romeo and Juliet laws.” These laws vary by state and generally set out an age gap that constitutes statutory rape. In some states, relationships within the age gap are not unlawful, while in others, the offense is a misdemeanor instead of a felony.

    Laws Against Incest

    Laws against incest prohibit marriage and sexual relationships between relatives. The specifics of these laws vary by state. For example, some states prohibit marriage between first cousins while other states allow them. The defense of consent is not available for incest charges, but lack of consent could lead to additional charges.

    Laws Against the Exchange of Sexual Acts for Money

    Most states have laws prohibiting the exchange of sexual acts for money. Many also have laws making it illegal to offer to exchange sex for compensation, and the person who pays for sex can also be charged with solicitation. At both state and federal levels, there are severe penalties for sex trafficking.

    Sex Offender Registration

    If you are convicted of certain sex offenses, you may be required to register as a sex offender. The sex offender registry is designed to allow the government to monitor convicted sex offenders. Registries are state systems, so you may be required to register again if you move to a new state.

    Required information is state-specific but can include name, date of birth, address, photo, vehicle information, and offense information. Some states also include fingerprints or DNA samples. Some of this information is available to the public, but sensitive information like DNA samples and fingerprints are unlikely to be included in publicly available information.

    If you must register as a sex offender and fail to do so, you may be charged with an additional crime. Additionally, some states will impose stricter punishments if someone on the sex offender registry is convicted of another sex offense.

    Should I Talk To a Lawyer?

    Sex offenses can carry serious penalties and restrictions. If you are charged with one of these crimes, it will be essential to speak with an experienced lawyer so you can understand your legal options and the consequences you might be facing. Your lawyer can also help you navigate the registration process, should you be required to complete it.

    Finding the Right Attorney for Your Needs

    Visit the Super Lawyers directory to find a criminal defense lawyer with experience handling sex offense cases.

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