The crucial issue here is the date at which your daughter's probation is due to terminate.
Procedurally, what occurs is that the probation officer fills out an affidavit of violation. Upon completion, the affidavit is forwarded to the judge. After reviewing the affidavit, the judge determines whether or not to sign off on a warrant.
To be a valid violation, the warrant MUST be signed prior to the expiration of the probation. So, if her probation is due to terminate on February 1, 2010, for example, then the warrant must be signed no later than February 1, 2010.
As to tomorrow, your daughter should be given a bond amount for the new arrest. As part of the evaluation of the bond, the judge will certainly consider her criminal history, including the probation case. While this clearly won't help her situation, it shouldn't raise it to a level that is impossible to meet.
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