How about the hotel handing out small cards and being caught by the police?

Legal analysis: If the police catch distributing yellow cards, they will be punished according to the Law on Public Security Punishment. Those who participate in the introduction of prostitution shall be detained for more than 10 and less than 15, and may be fined up to 5,000 yuan. If the circumstances are minor, they shall be detained for less than 5 days or fined for less than 500 yuan. If it constitutes a disturbance of public order, it should also be punished for disturbing public order.

Legal basis: People's Republic of China (PRC) Public Security Administration Punishment Law.

Article 66 Whoever engages in prostitution or whoring shall be detained for not less than 10 days but not more than 15 days, and may also be fined not more than 5,000 yuan; If the circumstances are minor, they shall be detained for not more than five days or fined not more than five hundred yuan.

Whoever solicits prostitutes in public places shall be detained for not more than five days or fined not more than 500 yuan.

Article 67 Whoever lures, shelters or introduces others to prostitution shall be detained for not less than 10 days but not more than 15 days, and may be fined not more than 5,000 yuan; If the circumstances are minor, they shall be detained for not more than five days or fined not more than five hundred yuan.