820 ILCS 5/1
No restraining order, award of monetary damages, except for damage done to an employer's property as a result of conduct prohibited by law, or injunction shall be granted by any court of this State in any case involving or growing out of a dispute concerning terms or conditions of employment, enjoining or restraining any person or persons, either singly or in concert, from terminating any relation of employment or from ceasing to perform any work or labor, or from peaceably and without threats or intimidation recommending, advising, or persuading others so to do; or from peaceably and without threats or intimidation being upon any public street, or thoroughfare or highway for the purpose of obtaining or communicating information, or to peaceably and without threats or intimidation persuade any person or persons to work or to abstain from working, or to employ or to peaceably and without threats or intimidation cease to employ any party to a labor dispute, or to recommend, advise, or persuade others so to do.
820 ILCS 5/1