DAB lawmaker and lawyer Holden Chow has accused Lord Jonathan Sumption of "political advocacy" over his comments in an opinion piece earlier this week that commented on Hong Kong's rule of law.

Lord Sumption, who recently resigned as a judge on the Court of Final Appeal, wrote an article in the Financial Times newspaper entitled "The rule of law in Hong Kong is in grave danger".

Speaking on RTHK's Hong Kong Today programme, Chow said the judge's comments were "grossly inappropriate".

Chow said they would put pressure on the courts when they heard cases, and contrasted Sumption's words with the comments from two other departing justices.

Earlier, Chief Executive John Lee also spoke out over the comments, saying a judge's professional duty is to interpret and apply the law, and that his or her expertise is not on politics.

Lee also said the judge had expressed different views a few years ago.