The legality of hidden vehicle cameras can vary depending on the country, state, or province you are in. In general, it is legal to use a hidden vehicle camera for security purposes or in situations where there is a reasonable expectation of privacy. However, it is important to check local laws and regulations to ensure that you are not violating any privacy laws or other regulations.
Some common situations where it may be legal to use a hidden vehicle camera include monitoring a company-owned vehicle or protecting your own property against theft or vandalism. It is important to note that using a hidden vehicle camera for illegal purposes, such as spying on someone without their knowledge or consent, is not always legal and may result in serious consequences.