Allan Leighton is a British businessman, chairman of The Co-operative Group since February 2015, former CEO of Asda, former chief executive of Pandora, and former non-executive chairman of the Royal Mail. He is also the co-owner of Brackley Town.
Post Office scandal unbelievable says ex-chairman
Former Post Office chairman Allan Leighton apologises for his part in the "terrible" Horizon scandal.
BBC News