Foreign judges in Hong Kong have come under scrutiny after a mainland China scholar argued that judges in the region’s top court should be local experts.

The comments by Tsinghua University professor Cheng Jie, as reported by the South China Morning Post, included the assertion that Hong Kong’s Court of Final Appeal was not just a court for Hong Kong but also “a national court”, and as such all judges should be Chinese nationals, or at least have Hong Kong permanent residency.