R.I. Gen. Laws § 42-28-11.1
Local police officers assigned to the state police for the purposes of assignment on a statewide task force shall exercise the same powers of arrest exercised by a sworn member of the state police only when working on an investigation authorized under the authority of the superintendent of the state police and only when said arrest power is exercised in the local police officer's capacity as a member of the statewide task force. If a local police officer is assigned to a statewide task force for the purpose of investigation into criminal matters, generally, he or she shall exercise the same powers of arrest exercised by a sworn member of the state police only when working on an investigation authorized under the authority of the superintendent of the state police. The authorization for such local police officers acting under the authority of this statute shall be on file with the Rhode Island state police, and the police officer's local department. A local police officer's power of arrest obtained pursuant to this section shall be authorized only for as long as he or she is under the direct supervision of the superintendent of the state police. The officer's assignment shall be for the duration of the statewide task force or unless the superintendent of the state police terminates the statewide task force prior to one year. The superintendent of the state police shall have the authority to reappoint a local police officer to an additional one year term.
R.I. Gen. Laws § 42-28-11.1