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 Oklahoma, Peeping Tom laws are addressed under the state's criminal statutes, specifically in the Oklahoma Statutes Title 21, Section 1171, which prohibits 'Window Peeping.' It is illegal for any person to secretly loiter and peek through the window or door of a private dwelling or a place where one would have a reasonable expectation of privacy, with the intent to invade the privacy of another person or for the purpose of sexual gratification. This law applies to situations where the victim is in a state of undress or in a private act that warrants an expectation of privacy. The use of any technological devices such as cameras, binoculars, or drones to enhance the ability to view or record the victim can also be considered an offense under this statute. Violation of these laws can result in criminal charges ranging from misdemeanors to felonies, depending on the circumstances and the presence of any aggravating factors, such as prior convictions or the age of the victim.