Someone slandered my father. How can I sue him in court?

You can call the police or bring a lawsuit directly to the people's court.

1. Anyone who commits one of the following acts shall be detained for less than 5 days or fined for less than 500 yuan according to Article 42 of the Law of People's Republic of China (PRC) on Public Security Administration Punishment; If the circumstances are serious, he shall be detained for more than 5 days 10 days, and may also be fined up to 500 yuan:

(2) publicly insulting others or fabricating facts to slander others;

2. Article 246th of the Criminal Law of our country refers to the act of deliberately fabricating and spreading fictional facts, which is enough to degrade the personality and reputation of others, and the circumstances are serious. The so-called serious circumstances mainly refer to the repeated fabrication of facts to slander others; Fabricating facts and causing serious damage to the personality and reputation of others; Fabricating facts to slander others, causing adverse effects; Defamation of others leads to the victim's mental disorder or suicide, and so on.

Whoever commits this crime shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention, public surveillance or deprivation of political rights.