Touch judge
The touch judge is an official who monitors the touch-line in a game of Rugby football and raise a flag if the ball goes into touch. There are two touch judges one for each touch-line.
Within the laws of the game, touch judges have other duties, mainly related to drawing foul play to the attention of the referee. (see Laws of Rugby Union section 6.B for more details.) In practice, however, many Rugby Union referees (especially at the top level) delegate further duties to their touch judges, including (but not limited to) keeping score and time, spotting forward passes and off-side offences and checking the legality of the bindings on the side of the scrum that the referee cannot see. In test matches, it is not uncommon for the referee and touch judges to be connected by a radio link to aid the communication of all this information. At lower levels, shouting must suffice.