Borrowing a relative's house, what law does surveillance violate?

Installing a camera in a hotel room violates the Regulations on Administrative Penalties for Public Security and the Criminal Law. According to Article 42 of China's Law on Public Security Administration Punishment, anyone who peeks, takes candid photos, eavesdrops or spreads others' privacy shall be detained for less than 5 days or fined for less than 500 yuan; If the circumstances are serious, they shall be detained for more than 5 days 10 days, and may also be fined up to 500 yuan. Infringement of others' privacy is generally an infringement. If it has not caused certain consequences, the infringer shall be liable for compensation, including compensation for mental damage, which does not constitute criminal responsibility. However, it cannot be said that any act that infringes on the privacy of others does not constitute a crime, and there is no need to sentence the perpetrator. According to the provisions of the criminal law, anyone who illegally searches another person's body or residence or illegally invades another person's residence shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention. Any judicial officer who abuses his power and commits the crime mentioned in the preceding paragraph shall be given a heavier punishment. Whoever conceals, destroys or illegally opens other people's letters and infringes upon citizens' right to freedom of correspondence, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than one year or criminal detention. Postal workers who open, conceal or destroy mail and telegrams without permission shall be sentenced to fixed-term imprisonment of not more than two years or criminal detention.