Colorado Revised Statutes Title 16. Criminal Proceedings § 16-3-106. Peace officer may pursue offender

When any peace officer is in fresh pursuit of any alleged offender, having a warrant for his arrest or having knowledge that such warrant has been issued, or, in the absence of an arrest warrant, when the offense was committed in the officer's presence or the officer has reasonable grounds to believe that the alleged offender has committed a criminal offense, and the alleged offender crosses a boundary line marking the territorial limit of his authority, such peace officer may pursue him beyond such boundary line and make the arrest, issue a summons and complaint, or issue a notice of penalty assessment.