C.R.S. § 24-60-203

(1) It shall be competent for any member of a duly organized state, county or municipal peace unit of a state, party to this compact, to enter any and all other states, parties to this compact, without interference: (a) While in pursuit of any person who has committed a felony in said state; or (b) While in pursuit of any person who has been charged with the commission of a felony in said state; or (c) While in pursuit of any person who has escaped from the custody of any penitentiary, jail or other penal institution, sheriff or other peace officer in said state. (2) Any member of a duly organized state, county or municipal peace unit of said state may at any time enter another state, party to this compact, and there apprehend and take into custody any person who has committed a felony in said state, or who is a fugitive from justice as herein designated, and for that purpose no formalities shall be required other than establishing the authority of the arresting officer.