UNKNOWN
Let us look at the situation we dealing with here.   You have a high profile political detainee.   He's about to be questioned about matters in which he is suspected of playing a role; he refuses to stand up whilst being interrogated; he insists that he will sit down.   Now in that situation could the police not achieve the same goal of interrogating Mr Biko, by allowing him to sit down and question him.   Isn't this really how this whole thing started?