Police in China can do whatever they want; after 81 days in arbitrary detention you clearly realise that they don't have to obey their own laws. In a society like this there is no negotiation, no discussion, except to tell you that power can crush you any time they want - not only you, your whole family and all people like you.
China has not established the rule of law and if there is a power above the law there is no social justice. Everybody can be subjected to harm. I'm just a citizen: my life is equal in value to any other. But I'm thankful that when I lost my freedom so many people shared feelings and put such touching effort into helping me.
Widespread state control over art and culture has left no room for freedom of expression in the country. For more than 60 years, anyone with a dissenting opinion has been suppressed. Chinese art is merely a product: it avoids any meaningful engagement. There is no larger context. Its only purpose is to charm viewers with its ambiguity.