Someone changed the lock of my house without authorization. Is it illegal?

Illegal. It is illegal to enter the house rented by the lessee without justifiable reasons and change the lock (break into the house), which belongs to the act of breaking into the house. Whoever 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.

Legal analysis

Breaking into a private house means breaking into someone else's house. That is, breaking into other people's houses without the permission of the owner or the competent department and without legal procedures. According to the relevant laws and regulations, citizens' homes are inviolable, so it is forbidden to illegally search or illegally invade citizens' homes. In other words, the inviolability of citizens' housing is a basic right of citizens, which is as important as citizens' personal freedom and personal dignity and is also protected by law. Relevant laws stipulate that the crime of trespassing on houses should be punished with fixed-term imprisonment of not more than three years or criminal detention. Judicial personnel should be severely punished for abusing their powers and breaking into houses. Whoever illegally intrudes into another person's house, but not serious enough for criminal punishment, shall be detained for not more than 15 days, fined not more than 200 yuan or given a warning. Citizens' legitimate private property is inviolable. The state protects citizens' private property rights and inheritance rights according to law. According to the needs of public interests, the state may levy, requisition and compensate citizens' private property in accordance with the law. Therefore, citizens' houses are not allowed to intrude at will, and illegal search or unauthorized intrusion into citizens' houses is prohibited.

legal ground

Article 13 of the Constitution of People's Republic of China (PRC) citizens' lawful private property is inviolable. The state protects citizens' private property rights and inheritance rights according to law. In order to meet the needs of public interests, the state may, in accordance with the law, expropriate or requisition citizens' private property and compensate them.