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It sounds like she was granted "diversion" which is a program that allows the person to plead guilty initially, pay and court costs/fees/fines and then do some community service while being on probation. After succesful completion of the CS, probation and if she has no further criminal incidents within that probation period, she goes back to court and they withdraw her guilty plea and dismiss the charge.
Once the charge is dismissed, she can file a petition for expungement after 2 years. This is an action that will erase the charge as if it never happened. She needs to do this because the charge will still show up as dismissed on a criminal records check until it is expunged.
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