No. If there is someone else to blame for your construction accident other than your employer or a co-employee, then you can also file a third party liability lawsuit against the persons or companies responsible for your injuries. It is called a third party liability suit because there is a third party besides yourself and your employer to blame for your injuries. There are a number of articles in the Library section of this web site with information concerning third party liability suits.You do not have to choose between filing an Illinois worker’s compensation case and a third party liability suit. You can pursue both.Our firm devotes a significant part of its practice to the representation of injured workers in third party liability suits.