735 ILCS 5/20-102
Any person who has received from the State or from any local governmental unit compensation, benefits or remuneration by means of a false or fraudulent record, statement, or claim or other willful misrepresentation, or by his failure to notify the State or local governmental unit of a change in his status as may be required by the State or local governmental unit, or by other fraudulent device, shall be answerable to the State or local governmental unit, as the case may be, for refunding the entire amount of such compensation, benefits or remuneration received. If the refund is not made, it shall be recoverable in a civil action from the person who received the compensation, benefits or remuneration, or from anyone who knowingly aided such person in obtaining the compensation, benefits or remuneration.
735 ILCS 5/20-102