MR MALAN
Very well, and then you've said that you took the road back to Ventersdorp to identify vehicles with black passengers, that you would turn around, take over, issue the signal and stop them at the roadblock, that was the modus operandi.  In the dead of night you would take over a car, you'd be driving in opposite directions, the lights of both vehicles would be on but you'd be able to see who were black passengers and who weren't?