Ibrox disaster triggered a radical rethink on crowd safety says leading expert

One of the world's leading stadium safety experts admits it took the loss of 66 fans at the Ibrox disaster for British football to wake up to the dangers of overcrowded grounds. Saturday marks the 50th anniversary of the worst sporting accident in Scottish history.The tragedy happened on January 2, 1971, at the end of the annual New Year Old Firm game when dozens of fans were crushed on stairway 13 as they tried to leave the ground.