Debate intensified in the Engineering functional constituency as two would-be legislators rounded on each other and a third joined the race. Dr Wong King-keung was accused by rival Dr Raymond Ho Chung-tai, 59, of not being involved enough in the Hong Kong Institute of Engineers and not contributing enough to the sector. But Dr Wong, 53, an Airport Authority member and Chinese People's Political Consultative Conference delegate who is backed by former allies of late engineering sector legislator Samuel Wong Ping-wai, said his role would become much clearer when he became a legislator. He then rounded on Dr Ho, questioning whether there was a possible conflict of interest in him being a transport consultancy firm director and a would-be lawmaker. Dr Ho denied any conflict of interest in his work at SPB Consultants. 'You must have substantial connections to run a functional constituency,' he said. 'As long as I declare the interest, there will be no problem. The company only concentrates on mainland infrastructure.' Dr Ho said he had always disliked such criticism. A provisional legislator and former president of the institute, he won 822 votes in the 1995 election but was defeated by Samuel Wong with 1,382 votes. Dr Ho said that although he was defeated by Mr Samuel Wong in 1995, he was confident he could grab 70 to 80 per cent of the vote. The third candidate, 53-year-old John Luk Wang-kwong, the assistant to the chairman and chief executive of Sun Hung Kai Properties, is reportedly winning the backing of some large firms and said he did not think his late entry into the race would put him at any disadvantage. 'The only loss is that some of my good friends have already pledged support for the other two candidates,' he said. Mr Luk won 637 votes and was selected as the Election Committee member to choose 10 legislators. He said he had been vice-chairman of the institute in 1995-96 and had been actively taking part in its work for the past 10 years.