At a combined probation revocation and sentencing hearing, the probationer is

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Do you have any clue what 21 might be?

Hope this information helps:

When a probation violation is extremely severe, or after multiple lesser violations, a probation revocation hearing could be scheduled. A judge at the hearing will consider reports from the probation officer, and if probation is revoked, the probationer will often be incarcerated in jail or prison. However, the term of incarceration might be reduced from the original potential sentence for the alleged crime(s). In cases where a defendant opted to accept probation rather than incur the time or risk of going to trial, a probation revocation can result in conviction of the original criminal charges. Thus, an innocent defendant could agree to probation but later be judged in severe probation violation, causing revocation, a jail term, and a permanent record of conviction.