ocked down status, such idi a Ulllllll.)\.l ..... '°" detention or d1sc1phnary segregation, at least once 111 the fir~v~O nunute pcn od of the hour {~xample, 12:00 a.m. - 12:30 a.m.) followed by another round in the second 30 minutes period of the same hdur (example, 12:30 am - 1 :00 a.111.), thus ensur