Wachiwiri kwa komishonala wa polisi , yemwenso ndi mkulu wa nthambi yoonetsetsa kuti apolisi akuchita zinthu moyenera ( Professional Standards Unit ) , Esther Wandale , adati iwo ali ndi cholinga chothana ndi mchitidwe wa katangale ndi ziphuphu pakati pa apolisi ndipo ati ali ndi chikhulupiliro kuti zinthu zisintha .