H J P BOTHA
The pre-arranged danger signal, well it was firstly that (a) Shabalala knew that Charles had been arrested earlier that day by the askaris and therefore it changed the entire situation.  When he gave the signal and we swooped, the fear which Charles had was not as a result of any suspicion which Shabalala had as towards him, but it was his own fear which led to his courage failing him on that moment.