Andrew Chiu Ka-yin, one of the prosecution witnesses jailed in a landmark subversion case involving 47 Hong Kong activists, has become the first national security offender to obtain early release, the Post has learned. A source also confirmed that Chiu, whose seven-year sentence was due to end in early 2028, left prison on Tuesday after being granted release for good behaviour. His release two years ahead of his original sentence makes him the first national security convict to secure remission...