 Since 1993 , the proportion of lbws in each English season has risen steadily . According to cricket historian Douglas Miller , the percentage of lbw dismissals increased after broadcasters incorporated ball @-@ tracking technology such as Hawk @-@ Eye into their television coverage of matches . Miller writes : " With the passage of time and the adoption of <unk> into other sports , together with presentations demonstrating its accuracy , cricket followers seem gradually to have accepted its predictions . Replay analyses have shown that a greater proportion of balls striking an <unk> leg go on to hit the wicket than had once been expected . " He also suggests that umpires have been influenced by such evidence ; their greater understanding of which deliveries are likely to hit the stumps has made them more likely to rule out batsmen who are standing further away from the stumps . This trend is replicated in international cricket , where the increasing use of technology in reviewing decisions has altered the attitude of umpires . Spin bowlers in particular win far more appeals for lbw . However , the use of on @-@ field technology has proved controversial ; some critics regard it as more reliable than human judgement , while others believe that the umpire is better placed to make the decision . 
