There is always the criterion of taste. We do not want artistic licence to degenerate into pornography. Of course there is a fine line to draw but it is a line which has to be drawn. It's not easy to draw that line, and it requires courage to draw it well. Being too lax can be as bad as being too strict.
Civilization is maintained by lines being drawn.
One of the trends in the regional art scene is performance art. Last year performance artists Josef Ng and Shannon Tam were banned from performing in public. They were banned for performing obscene acts in public. One is obscenity masquerading as art, which we took action against. Performance art is a separate matter.