My wife's brother got 3 years probation for unarmed robbery. About 6 months ago he got an OWI, which was his first and only violation of probation. He spent his time in jail for the OWI and nothing more became of it.

He has a court hearing Wednesday, and his PO said if he don't get his fee's down to 0 he will most likely go to prison. Is this a reasonable assumption?

Did he inform the PO of the OWI charge immediately after it happened? The jails are too full right now so maybe they'll put him in jail for a week or two and then let him out. He definitely needs to make a good effort to get the fees down to zero though. Is the fee for the supervision by the po department that he's in arrears on?

"Did he inform the PO of the OWI charge immediately after it happened?"
Yes. He informed him.

"Is the fee for the supervision by the po department that he's in arrears on?"
Yes it is. What else could it be for?

There can be many fees, court fees, court fines, repayment of the victim, and then actual probation fee ( for the payment of the probation) So I think they wanted to know was it merely the probation fee, not other fees.

But yes they can, often they will merely put them in jail for a few weeks to get their attention,

As far as I know. The fee's in which his PO mentioned was supervision fee's only. He is about $300 short and wants to know what will happen.

Thank you all for answering!

Now they want the money, not him in jail, so if a threat gets them paid, it is done its job