 Businessman Chen You-hao named Chen Che-nan as one of the people who helped Chen Shui-bian solicit donations for Chen Shui-bian's 1998 Taipei mayoral campaign and the 2000 presidential campaign.In a separate case also involving black gold politics, Chen Che-nan was found to have used his political influence to secure favorable court rulings for businessman Liang Po-hsun.The Taipei District Court ruled in December 2006 that Chen was to serve twelve years in prison.