Be very straightforward. Don’t be rude, be formal. Tell her all the consequences in a clear manner—make sure she can and will understand it. Tell her she will owe the 35$ a day and the 500$ contempt fee (See how funny she finds that!) and tell her that she will be sitting in a cold, dark cell until she decides to return the stolen property. Don’t threaten her or anything, just be very forward like I said earlier. I’m not sure how exactly you would go about writing it, with wordings and such. But like I said, I’d be formal, clear, and forward.