Senior police official Kelvin Kong Hok-lai has been named head of the force’s National Security Department, succeeding Andrew Kan Kai-yan, who began pre-retirement leave on Tuesday. Chief Executive John Lee Ka-chiu appointed Kong as deputy police commissioner (national security) under Article 16(2) of the national security law. The appointment took effect immediately after Kong took the oath of office. Lee said Kong, formerly the director of national security, had served with the Hong Kong...