According to China's Constitution, the houses of China people and citizens are inviolable. It is forbidden to illegally search or invade citizens' houses. That is, the inviolability of citizens' houses is a basic right of citizens, which is as important as citizens' personal freedom and personal dignity and is also protected by law. The crime of trespassing refers to the act of entering a citizen's house against the wishes of the members of the house or without legal basis, or refusing to quit after being asked to do so.
If the lessor and the lessee do not terminate the house lease contract, the landlord will change the lock privately because the lessee fails to pay the rent, which is an infringement and the landlord needs to bear legal responsibility; However, it is legal for the landlord to negotiate with the tenant to change the lock and the tenant agrees to change the lock. According to the provisions of the Criminal Procedure Law of People's Republic of China (PRC): 1, the crime of illegal invasion of houses that constitutes this crime shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention; 2. Whoever illegally intrudes into another person's house, but not serious enough for criminal punishment, shall be detained for not more than fifteen days, fined not more than two hundred yuan or given a warning.
I hope the above content can help you. Please consult a professional lawyer if you have any other questions.
Legal basis: Civil Code of People's Republic of China (PRC).
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Anyone who infringes upon civil rights and interests shall bear tort liability in accordance with this Law. The civil rights and interests mentioned in this Law include personal rights and property rights such as the right to life, health, name, reputation, honor, portrait, privacy, marital autonomy, guardianship, ownership, usufructuary right, security right, copyright, patent right, trademark exclusive right, discovery right, stock right and inheritance right. The infringed party has the right to request the infringer to bear the tort liability.