SAPOL have put out a warning that they have received several reports of split pins (also known as R pins) being removed from Hitch Pins which secure a tow bar to a vehicle (trailer ball mount).
Removal of the split pins is a serious safety concern, especially if a towing vehicle is travelling at speed.
Please check that the split pin is still in place prior to moving off.
It is highy recommended that the purchase of a lockable Hitch Pin would be a deterrence and give peace of mind.