(a)During the night the officer on duty outside shall patrol the main wall of the jail and shall not quit his beat or sit down. He shall be armed with a baton.(b)The barracks shall be visited once in every hour throughout the night by a patrolling officer who should examine the gratings and doors and satisfy himself that they are secure and that the convict-officer on duty inside is on the alert. He should frequently challenge him with this object and enquire the number of prisoners and if all are present.(c)The main wall should be lighted with lamps burning brightly all night. The quantity of oil allowed for each lamp shall be from 7 to 10 fluid ounces, according to the season.
