FORMER Appeal Court judge Simon Li Fook-sean is at odds with his daughter, Gladys Li QC, over the criteria for legislators elected in 1995 to serve beyond 1997 on the through-train.
Ms Li, objecting to ''patriotism'' as one of the criteria, said the best and simplest method was to take an oath pledging allegiance to the Special Administrative Region and upholding the Basic Law.
Under the ''one country, two systems'' policy there were occasions when legislators were called on to make a difficult choice over loyalty, she said, adding that the first choice should be to Hongkong.
Mr Li, a vice-chairman of the working panel, had said that United Democrats Martin Lee Chu-ming and Szeto Wah should not qualify for the through-train because they carried out anti-China activities.
He said these included burning copies of the Basic Law, calling on the United States to impose economic sanctions on China and calling on Hongkong people to stage a run on China-funded banks.
Mr Lee and Mr Szeto Wah have threatened to sue Mr Li over the final accusation, which they firmly deny, unless he apologises. If they do not receive a reply by Tuesday afternoon, they will proceed with legal action.