R.I. Gen. Laws § 30-7-8: Bounds of parade and camp grounds.

Every commanding officer when on duty may ascertain and fix necessary bounds and limits to his or her parade or campground, not including any road on which people travel, so as to obstruct the parade or camp ground or prevent their passing for more than two (2) consecutive hours, within which no person shall have a right to pass or enter without leave from the commanding officer.