MR DU PLESSIS
All right Mr Chairman.   May I just say Mr Chairman, that for purposes of this cross-examination and for purposes of my learned friend Mr Visser's facts that he placed before the Commission, I want to get to the point of the question because the point of the question does not turn around the question: "when did he become an informer, when did he become a student", the point of the question is
	Let's accept Mr Ngo, let's accept that you were either an informer or a constable in the security branch of Bloemfontein in 1983.  For purposes of the question, let's accept that.  
	My question to you and that's what the question relates to - my question to you is, explain to us please, why it is that when you were involved in the security branch in Bloemfontein, partly as an informer and partly as a constable, why is it that you know of so many people involved in the security branch whereas when you were two years involved intricately with the security branch in Mamelodi, you came to know only two other people?  Explain that to us please.