Mass. Gen. Laws ch. 276, § 15: Investigation of demand and report to governor

Section 15. When a demand shall be made upon the governor by the executive authority of another state for the surrender of a person so charged with crime, the governor may call upon the attorney general or any other prosecuting officer to investigate or assist in investigating the demand, and to report to him the situation and circumstances of the person so demanded, and whether he ought to be surrendered.