The first part of the PDF from the legco.gov.hk states that it must be double-criminalty, which means the act that the person being extradited must be a crime f

The first part of the PDF from the legco.gov.hk states that it must be double-criminalty, which means the act that the person being extradited must be a crime for both jurisdiction. There's also no double jeopardy, no political indictments. Suppose the CE is in cahoots, it then goes to the courts, which has been the least affected because the elites in HK depends on it for their business dealings.