This isn’t a China specific thing. The story of Carlos Ghosn is a particularly worrying example out of Japan.
> Reconsider travel to Mainland China due to the arbitrary enforcement of local laws, including in relation to exit bans, and the risk of wrongful detentions.
No justice system that's actually fair can have a 99.8% conviction rate at trial. It's a process designed to achieve convictions and punishment, not actually discover the truth.