R.I. Gen. Laws § 12-11-2
The grand jury shall attend the superior court at Providence for the counties of Providence and Bristol on the third Monday of September of each year; and on the first regular court day of every sixth week thereafter until the second Monday of July, unless at least ten (10) days prior to the day on which a grand jury is to commence its term the presiding justice orders in writing that a grand jury shall not be summoned for that term. However, the presiding justice or any other justice of the superior court may at the request of the attorney general in writing filed in the office of the clerk of the court of the county cause the grand jury in attendance on the superior court at Providence for the counties of Providence and Bristol to attend continuously for all or any part of its session in between the second Monday in September and the second Monday in July of the following year and also during all or any part of its vacation from the second Monday in July to the second Monday in September in each year, when in the discretion of the presiding justice or any other justice of the superior court for the counties it is for the public interest and the proper administration of justice to do so.
R.I. Gen. Laws § 12-11-2