Major themes of the demo included voicing opposition to Beijing's plan to scrap Hong Kong's direct electoral system in 2007-08, as well as condemning the oppression and torture of followers of the Falun Gong movement, crackdowns on freedom of expression and the Internet, and deteriorating working conditions. Jiang Zemin and Chief Executive Tung Chee hwa were their major targets of the protestors' anger. Labour organisations and human rights groups were well represented, alongside thousands of ordinary Hong Kong citizens, from infants to the elderly.
http://news.bbc.co.uk/2/hi/asia-pacific/3853723.stm