R.I. Gen. Laws § 12-16-6: Punishment for disobedience of summons.

If a witness, who is summoned as provided in this chapter, after being paid or tendered by some properly authorized person the sum of ten cents ($0.10) a mile for each mile and five dollars ($5.00) for each day that he or she is required to travel and attend as a witness, fails without good cause to attend and testify as directed in the summons, he or she shall be punished in the manner provided for the punishment of any witness who disobeys a summons issued from a court of record in this state.