Quote ="Mild mannered Janitor"Now, if the incident which is being over analysed to the nth degree was not a knock on, then why do referees penalise the tackled ball carrier when they lose control of the ball and recover it whilst facing their own goal line.'"
It is not a knock on when a tackled player loses possession of the ball. This is a separate rule which applies to any loss of possession by a tackled player:
Quote Losing possession – intentionally – accidentally 8. A tackled player shall not intentionally part with the ball other than by bringing it into play in the prescribed manner. If, after being tackled, he accidentally loses possession, a scrum shall be formed except after the fifth play-the-ball.'"