R.I. Gen. Laws § 35-6-24: Certification of fees for summoning state witnesses.

The deputy sheriff shall certify in one of the books, under the proper title of the case and the division thereof to which his or her fees apply, the amount of his or her fees for summoning each witness in behalf of the state, the number of miles he or she has traveled in making service, and the amount due him or her therefor, together with the amount and items of all other fees due him or her for serving other criminal process in behalf of the state, which amount he or she may receive for the use of the state, after receipting therefor in the book, under the proper title of the case on account of which the fees are due.