A touch judge is an assistant referee whose primary duties include monitoring the touchline boundaries in football and rugby matches. There are various other terms to describe the role, and depending on the sport or country, the title may differ. In football, they are called assistant referees, while in rugby, they are referred to as touch officials or touch judges. Similarly, in American football, they are designated as sideline officials, and in cricket, the field umpire plays a similar role. The various terms used for touch judges indicate the crucial importance of upholding the rules of the game and ensuring fair play by monitoring the sidelines.