 After considerable debate and various experiments , the law was changed again in 1972 . In an attempt to reduce pad @-@ play the new version , which is used to this day , allowed batsmen to be out lbw in some circumstances if they did not attempt to hit the ball with their bat . Since the 1990s , the availability of television replays and , later , ball @-@ tracking technology to assist umpires has increased the percentage of lbws in major matches . However , the accuracy of the technology and the consequences of its use remain controversial . 
