ICC tweaks 2.5 metre DRS rule for 'consistency'
The ICC has made a slight but significant alteration to the 2.5m rule, the most controversial segment of its decision review system (DRS) used in this World Cup, to enable more consistent application by the umpires
What the law says
If a 'not out' decision is being reviewed, in order to report that the ball is hitting the stumps, the evidence provided by technology should show that the centre of the ball would have hit the stumps on any part of the middle stump (previously "within an area demarcated by a line drawn below the lower edge of the bails and down the middle of the outer stumps").
Sharda Ugra is senior editor at ESPNcricinfo