A Democratic Party member plans to go to court over the results of the district council elections, in which he lost by 22 votes. Winfield Chong Wing-fai is finalising the details of 118 voter registrations in the Sai Wan constituency in Central and Western District. He said he would soon file an appeal to the High Court - making him the first to do so in connection with last month's elections. The Democratic Party alone has submitted more than 400 cases of suspected vote-rigging to the ICAC in connection with the polls. Several similar cases of suspicious voter registrations have come to light. Chong lost to Horace Cheung Kwok-kwan of the Democratic Alliance for the Betterment and Progress of Hong Kong. 'We have been compiling evidence and are reaching a solid case,' Chong said. 'We will apply for legal aid and file the petition.' He said some voters in Sai Wan were registered at a construction site - in six buildings that had been sold, and some demolished, to build the MTR's West Island Line. 'According to the transaction records of the acquisition, most sales were completed in June and July, 2009,' Chong said. 'The last deal was completed in December, 2010, while the second-last was in July, 2010. So the electoral offices have had [a long time] to discover the mistake.' He filed complaints three weeks ago with the Electoral Affairs Commission, the Independent Commission against Corruption and the police. 'We have been asking if any of these doubtful voters cast ballots in the district polls but the offices have refused to disclose it.' In a survey on vote-rigging last month, the Democrats found 14 per cent of the 529 respondents had been mailed polling cards of unknown voters - who had either failed to update their addresses or given false ones. 'The findings reflect the inaccuracy of the voter registration system,' Democrat Andrew Wan Siu-kin said. The Legislative Council is discussing how to improve the voter registration system to rebuild people's confidence in the electoral system. A University of Hong Kong poll found confidence in the 'one country, two systems' principle had dropped; 40 per cent of respondents said they had no confidence in the concept, an increase of 7 points in a year. Pollster Dr Robert Chung Ting-yiu said: 'It is probably due to recent vote-rigging suspicions.