That is tough situation for your sister because if they call the police and she is charged she may be thrown out of the diversion program. Regarding a potential civil case against the store you can post your question under employment litigation and see if anyone who does employment work will respond. Regarding her criminal charge in the past, I believe her employer does have a right to know but certainly an employment lawyer is best person to answer this question for you. If she gets charged, she will need a criminal lawyer to help deal with both the old theft case and new one. I hope she will not need one!
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