Peeping Tom laws—also known as voyeurism laws or invasion of privacy laws—generally make it illegal and a criminal offense to peek into windows or doors on private property to view a person who is fully or partially naked for the purpose of sexual desire or gratification.

Peeping Tom laws vary from state to state and some states require that the victim not realize he or she was being viewed and that the victim had a reasonable expectation of privacy (was in a place where it was reasonable to expect privacy). And some states specifically address the use of unmanned aircraft (drones), cameras, video cameras, and binoculars in connection with such peeping. Some state statutes specifically prohibit peeking into bathrooms, dressing rooms, showers, and baths. And some states characterize this criminal offense as trespassing with the intent to peer or peep.

Peeping Tom laws are located in a state’s statutes—often in the penal or criminal code.

In Nevada, Peeping Tom laws are addressed under the state's invasion of privacy statutes. Nevada law makes it illegal to engage in 'Peeping Tom' behavior, which is considered a form of trespassing and invasion of privacy. Specifically, Nevada Revised Statutes (NRS) 200.603 and 200.604 prohibit a person from secretly peering, spying, or eavesdropping through windows, doors, or other openings of a dwelling or structure without the consent of the person being observed. This applies when the person has a reasonable expectation of privacy, such as in their home, bathroom, or dressing room. The law also covers the use of electronic devices, such as cameras and video equipment, to invade someone's privacy for the purpose of sexual gratification. Violations of these statutes can result in misdemeanor or gross misdemeanor charges, depending on the circumstances, and can escalate to felony charges if the offense is committed more than once or if the person has been previously convicted of a similar offense. Additionally, Nevada law addresses the use of unmanned aerial vehicles (drones) in NRS 493.112, which prohibits the use of drones to capture images or recordings of individuals in a manner that invades their privacy.