The laws of 13 states expressly prohibit the unauthorized installation or use of cameras in private places. A private place is one where a person may reasonably expect to be safe from unauthorized surveillance, locker rooms, restrooms etc. Several states have laws prohibiting the use of hidden cameras in only certain circumstances, such as in locker rooms or restrooms, or for the purpose of viewing a person in a state of partial or full nudity.

Alabama, Delaware, Georgia, Hawaii, Kansas, Maine, Michigan, Minnesota, South Dakota, and Utah also prohibit trespassing on private property to conduct surveillance of people there.

In Alabama, Arkansas, California, Delaware, Georgia, Hawaii, Kansas, Maine, Michigan, Minnesota, New Hampshire, South Dakota, and Utah, installation or use of any device for photographing, observing or overhearing events or sounds in a private place without permission of the people photographed or observed is against the law.

Provided by http://www.safetybasement.com/category_s/385.htm