The six men and six women were sent out just before 11am after ten weeks of the trial at Preston Crown Court.
The retired chief superintendent is standing trial alongside former Sheffield Wednesday club secretary Graham Mackrell, who denies failing to discharge his duty under the Health and Safety at Work Act. Mr Duckenfield, who was promoted to the role less than three weeks before the disaster, gave the order to open exit gates to the ground after crowds built up outside.
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