
Quoting
4eyedbuzzard
Why not just get her an attorney and see if they can get her into a diversion program of some sort that would essentially dismiss the charge after the probation period?
As to "Basically airing the system's dirty laundry." - Threaten to do that and you are simply creating trouble for both yourself and your daughter.
1) It's very very doubtful that a judge would allow any such testimony. Testimony is limited to the facts surrounding the case, character of the accused being tried, credibility of witnesses, etc. - not what some other child or person "of privilege" received as a charge and/or sentence in any other matter.
2) Do you really want to PO a prosecutor who may be in a position to recommend a diversion program or agree to other lesser charges and/or punishments?