It is generally legal to install a video camera in your home to monitor a babysitter or nanny, and does not require the consent of the babysitter or nanny. But it is generally illegal to place such a camera in private places such as bathrooms or a live-in nanny’s bedroom. And in some states that require both parties to consent to the recording of a conversation, it is illegal to place a camera or other device in your home that records audio without the consent (preferably in writing) of your babysitter or nanny. These states that require two-way consent to record conversations (your consent and the babysitter or nanny’s consent) include California, Connecticut, Delaware, Florida, Hawaii, Illinois, Louisiana, Maryland, Massachusetts, Montana, Nevada, New Hampshire, Oregon, Pennsylvania, and Washington.

In Michigan, it is generally legal to install a video camera in your home for the purposes of monitoring a babysitter or nanny. This is often done to ensure the safety of children and property. However, Michigan law prohibits the installation of cameras in places where individuals have a reasonable expectation of privacy, such as bathrooms or a live-in nanny's bedroom. Regarding audio recording, Michigan is a 'one-party consent' state, which means that only one party involved in the conversation needs to consent to the recording. Therefore, it is legal to record audio with a camera as long as the homeowner, who is also a party to any conversation with the babysitter or nanny, consents to the recording. It is important to note that this does not extend to any private conversations that the homeowner is not a part of. Homeowners should be cautious and considerate about where and how they use video and audio recording devices in their homes.