Cc's brother-in-law and Liu went back because the video content involved simulated gangster intimidation. The video content of Cc's brother-in-law and Liu Hui involves simulated gangster intimidation, which is illegal. Article 42 of the Law on Public Security Administration Punishment commits one of the following acts, and shall be detained for not more than five days or fined not more than five hundred yuan. If the circumstances are serious, they shall be detained for not less than five days but not more than ten days, and may also be fined not more than 500 yuan.