He also was the Deputy Public Prosecutor in the trial of Francis Seow .
Before becoming CAD Director , Ang had assisted the Commission of Inquiry into the death of National Development Minister Teh Cheang Wan , who committed suicide in the midst of corruption investigations .
Teh Cheang Wan also was the Development Minister     in the trial of Francis Seow .
Before becoming CAD Director , Ang had assisted the Commission of Inquiry into the death of National Development Minister Teh Cheang Wan , who committed suicide in the midst of corruption investigations .