Director of Public Prosecutions (DPP) Masauko Chamkakala and Anti-Corruption Bureau (ACB) chief investigations officer Vilera Liwonde on Tuesday testified against former presidential aide Norman Chisale for allegedly intimidating public officers and obstructing justice. Appearing before Lilongwe principal resident magistrate Roderick Michongwe, the DPP told the court that Chisale threatened him through a letter dated October