LBW stands for “Leg Before Wicket” in the sport of cricket. It is a method of dismissing a batsman, and is governed by Law 36 of the laws of cricket.
When the ball is bowled and hits the batsman’s body or equipment (excluding the bat) before hitting the ground, the umpire can give the batsman out LBW if they believe the ball would have hit the stumps (the wicket) if the batsman’s body or equipment were not in the way.
The decision to give a batsman out LBW is made by the on-field umpire, who must take into account a number of factors including the position of the ball, the angle of impact, and the position of the batsman’s legs.
The LBW rule is intended to prevent batsmen from blocking the ball with their body or equipment, rather than attempting to hit it with their bat. However, it can be a contentious decision, as the umpire’s judgement can be affected by factors such as the speed of the ball and the position of the umpire.
There are some criteria to be met for an lbw decision to be given in favor of the fielding team :
The ball must have pitched in line with the stumps
The ball must have hit the batsman in line with the stumps
The ball must not have hit the bat first
The ball must have been going on to hit the stumps
In recent years there have been technological advances such as the use of ‘DRS’ (Decision Review System) which allows teams to challenge umpire’s decision, it has helped in getting the right decision but still it is not 100% accurate and some human error is always there.