Grand theft charges have been leveled against a Morrison woman who authorities say stole thousands of dollars worth of merchandise from Walmarts across the Midstate.The woman, Tammy S. Murphy, 44, has been in trouble with the law before for having sticky fingers and had been banned from Walmart as part of her prior shoplifting incidents. She stands charged with grand theft, possession of stolen goods, and five counts of criminal trespass for entering Walmart stores after being warned not to do so. She will face hearing Jan. 14.Murphy was busted by Highway Patrolman Gary Myers after the local Walmart store sent out an alert she had left the store without paying for merchandise.