How do the police check the hotel to determine the involvement in pornography?

Legal analysis: 1. To identify prostitution, in addition to the confession of the criminal suspect, the police should also investigate other evidence, such as the relevant physical evidence of the witnesses at the scene when they were caught red-handed, or the audio-visual materials that documentary witnesses can prove about prostitution or other testimonies of witnesses. 2. If the suspect does not admit prostitution, but the public security organ has sufficient evidence to prove it, it can be regarded as prostitution.

Legal basis: Article 66 of the Law of People's Republic of China (PRC) on Public Security Administration Punishment stipulates that a person who engages in prostitution or whoring shall be detained for more than 10 days and less than 15 days, and may also be fined less than 5,000 yuan. If the fine is relatively light, he shall be detained for less than 5 days or fined for less than 500 yuan. The principle is 10 days, 15 days, and a fine of 5,000 yuan can be imposed. Prostitution refers to the behavior of having sex with money or property as the medium between unspecified opposite sex or same sex.