ANSWER
Well firstly because of the extreme danger of a very sensitive source like Joe Mamasela being uncovered, his identity, secondly the danger of embarrassing the security
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MR JANSEN	116	D J COETZEE
police in extreme, which could result if for instance Joe Mamasela and Almond Nofomela and even myself then were charged with illegal diamond dealing or/and murder, that exactly that will happen what happened on the evening of 19 October 1989 when Almond was to be sentenced the next morning on death row and he spoke out about all this illegal government sanctioned hit squads that was going on in the security police.