Details of the Hong Kong national security law were revealed when it came into effect on Tuesday evening.The legislation, in six chapters consisting of 66 articles, led to widespread concern about its implications, despite officials reiterating that it was targeted at a small minority in the city.The Post looks at how various parties could be affected under the law:Beijing’s new office in cityThe Office for Safeguarding National Security, Beijing’s new agency in Hong Kong, can carry out law…