the kuomintang nominated yeh to a second term on the control yuan in march 2007. he was renominated in september 2008, after the ma ying-jeou administration took office, and confirmed in november 2008. in 2009, yeh co-wrote impeachment charges against lin ling-san, voted to censure the ministry of national defense over its handling of justin yifu lin's 1979 defection, and took lead roles investigating taiwan high speed rail and damage from typhoon morakot. in 2011, yeh accepted a petition from the public television service against the government information office. he also participated on reviews of martial law, as well as probes of alleged corruption within taipei city government regarding the xinsheng overpass project and the international flora exposition.