 A lifted quarter seam could potentially be pushed back to its normal position before the end of the over, when the ball is due to be inspected by the umpires.During the fourth Test between England and Pakistan at The Oval in 2006, umpire Darrell Hair adjudged Pakistan to have tampered with the ball.Hair was seen pointing to the quarter seam while discussing the issue with his fellow umpire, Billy Doctrove.