The former head of Tianjin's Binhai New Area is under investigation for alleged violations of "economic discipline," Shanghai Daily reported. Pi Qiansheng, 57, who served on the Communist Party of China's Tianjin Committee before he was sacked in June 2007, is under double-designation status. The designation sets off a procedure under which a member or official of the Party is ordered to explain or confess alleged involvement in a disciplinary violation or corruption case.