The first is to see if he spreads these videos. If she only sees these indecent videos through legal channels, it is not suspected of breaking the law. However, if he sees these indecent videos and shares them with friends, or uploads them to the public platform, he is suspected of spreading indecent videos and will definitely be punished in accordance with the provisions of the Law on Public Security Administration Punishment. In particular, if he uses these videos to fight for traffic, or in exchange for some income and other benefits, he is suspected of buying and selling, and the punishment will be much more severe.
The second is to see if he watches these videos in his private space. If he just hides himself and secretly watches some indecent videos, he doesn't take them out to spread and show them to others, it only involves moral issues and doesn't violate the law. But if he watches these indecent videos in public, whether intentionally or unintentionally, it is illegal for people next to him to watch them. Some people feel bored by taking the subway or bus, so they take out the indecent videos on their mobile phones. Maybe he doesn't want to spread this video to others, but people around him will see it more or less, that is, watching indecent videos in public. In fact, this is also suspected of spreading indecent videos and should be punished accordingly.
Third, see if he benefits from these videos. Some people regard watching indecent videos as their hobby, but in private, they will not spread it, let alone profit from it. This behavior is not illegal. But if he screened out these indecent videos and spread them for profit, it would definitely be illegal. People who buy and sell indecent videos are actually as responsible as those who make indecent videos, because the disseminators do great harm.
Some people think that it is not illegal for them to just watch a video or just share it with others, because they don't face up to the saying that there is no killing without buying and selling. It is precisely because of these people who pay for these indecent videos that more people will spread them for their own benefit, and selling these things will cause harm to some innocent people.