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 Michigan, Peeping Tom laws are addressed under the state's penal code, which criminalizes window peeping and other forms of voyeurism. Specifically, Michigan law makes it a misdemeanor for any person to be a 'disorderly person,' which includes those who engage in window peeping. This is outlined in Michigan Penal Code Section 750.167. The law prohibits looking into a dwelling without the occupant's consent for lewd or lascivious purposes. Additionally, Michigan law also addresses the use of devices such as cameras and other electronic equipment for voyeuristic purposes. Under Michigan Compiled Laws Section 750.539d, it is illegal to install, place, or use any device for observing, recording, transmitting, photographing or eavesdropping in a private place without the consent of the person or persons entitled to privacy there. This includes areas where a person has a reasonable expectation of privacy, such as bathrooms, changing rooms, and hotel rooms. The use of drones for such activities would also fall under these prohibitions. Violations 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.