Constitution of the State of Illinois Art. I, § 14. Imprisonment for Debt

No person shall be imprisoned for debt unless he refuses to deliver up his estate for the benefit of his creditors as provided by law or unless there is a strong presumption of fraud. No person shall be imprisoned for failure to pay a fine in a criminal case unless he has been afforded adequate time to make payment, in installments if necessary, and has willfully failed to make payment.