735 ILCS 5/4-108
The court, upon ex parte motion, without notice, supported by affidavit of the plaintiff, his or her agent or attorney, substantially describing the property to be attached, and the value thereof, may, if satisfied of the bona fides of the application and sufficiency of the bond under the circumstances of the case, including proposed garnishments, fix the amount of the bond in double the value of the property to be attached, instead of double the sum sworn to be due, and in such event the order shall direct the officer to attach such specifically described property, but the value of such property to be attached shall not be in excess of an amount sufficient to satisfy the debt claimed and costs. The court may require that such affidavit be supplemented by additional showing, by appraisal or otherwise, as to the value of such property, and may, upon motion of any party to the action claiming an interest in such property, either before or after actual attachment, require additional security, or order release of the attachment to the extent not covered by adequate double security.
735 ILCS 5/4-108