Yang Xiaonan criticised two points of Li's opinion on the issues of the NPCSC's power of interpretation. The CFA, in accepting the NPCSC's authority to interpret the Basic Law, stated that it arose from Article 67(4) of the
1982 Constitution of the People's Republic of China. However, the CFA also stated that the NPCSC interpretation, being of judicial character, had a retrospective effect and was thus applicable from 1 July 1997. Yang sees these two assertions as inherently contradictory: if the NPCSC's power of interpretation arises in the way that the CFA claims it does from the PRC constitution, then such interpretations should be of legislative rather than judicial character, and thus are non-retrospective. He also pointed out that Basic Law 158(3) explicitly states that NPCSC interpretations do not affect judgments previously rendered. Gittings' colleague
Albert Chen was less pessimistic about the CFA's ruling. He admitted the possibility that frequent use of interpretation powers by the NPCSC could easily harm the autonomy of Hong Kong courts and public confidence therein. However, he pointed out that in Hong Kong, just as in other jurisdictions,
constitutional law comprises not just the "bones" of the written text itself, but also the "flesh" of
constitutional conventions which "buil[d] upon practices, habits, customs, and legitimate expectations" and "evolve gradually to supplement the formal provisions". In Chen's view, the evolving constitutional convention in Hong Kong seemed to be that the NPCSC refrains from interpreting the Basic Law on its own initiative, but only does so when requested by Hong Kong's executive or judicial branches. The conditions for the judicial branch to request an interpretation is delineated by the Basic Law and the referral tests defined in
Ng Ka Ling, while the executive branch itself refrains from requesting interpretation except with significant support from the legislature or public opinion. ==References==