After marriage, my ex-wife forged my signature, signed a document agreeing to change the name of the child, and changed the name of the child privately at the police station. How can I restore the child's name? As a father, you have the right to raise an objection to the police station where you work, show your evidence and ask for your name to be restored.

The child's first name, including the surname, is actually not that important, just a code name. With the mother's surname, the state also recognizes it.

As long as the child is well, it is more important than anything else!