They can adjudicate on whether or not a player is half a foot on or offside from a camera angle that is 30-40 metres behind the play back on the halfway line, but say they can't make a call on a forward pass. To use a Pommy term, its completely bonkers!!!!
Plus they can determine if a ball has been knocked forward or backwards from all sorts of odd angles.
But adjudicate on a forward pass. Not possible.