I thought it was one of Sylvia's best speeches in Parliament. The arguments she put up and the manner in which she organized her arguments were airtight. Shan had to thank God that it was an adjournment motion, not a parliamentary debate. Otherwise, NMP and WP MPs would have taken him on from there.
You could see the worrying expression on the faces of PM, DPM and KC, struggling to hide their embarrassment. If Shan was good, he wouldn't have had to resort to snide remarks such as "you are lawyer, you should know" in what seems to be a desperate attempt to thumb his opponent down. In other words, Shan was resorting to authority, not reasoning.
Now the matter is no longer an issue of policy or legal decision. Shan has effectively turned it into a linguistic decision.