725 ILCS 5/107-15: Fresh pursuit.

When the fact that a felony has been committed comes to the knowledge of a sheriff or coroner, fresh pursuit shall be forthwith made after every person guilty of the felony, by the sheriff, coroner, and all other persons who is by any one of them commanded or summoned for that purpose; every such officer who does not do his or her duty in the premises is guilty of a Class B misdemeanor.