Employment Law Questions? Ask an Employment Lawyer.
HelloThis is Samuel and I will discuss this and provide you information in this regard.Yes, you can tell here she is not welcome in your store. I suggest you tell her that if she comes into your store, your employees have been instructed to call the police and have her removed as a trespasser. You also should consider instructing your employees to call the police if she comes in. You do not need to give them a reason why she is not permitted in your store.
Also, if the value of the theft equates to a felony you can still have her prosecuted, if you have evidence of the thefts.