 Internet cases of Chinese journalist Shi Tao and three other dissidents including Wang Xiaoning.Dui Hua is believed to be the first foreign NGO to host a juvenile justice expert exchange with China's Supreme People's Court (SPC) and since 2008, Dui Hua has hosted four such exchanges.In 2008, Dui Hua arranged for a delegation of six Chinese judges to visit US juvenile courts, detention facilities, and other institutions.