Section R. 791.735 - Holding CellsRule 35.
(1) A jail or lockup shall have 1 group holding cell that hasn't less than 150 square feet of floor area. The capacities of a group holding cell is determined at 15 square feet of floor space per inmate, excluding benches.(2) A holding cell shall provide for unobstructed supervision and observation of the entire holding cell area, which shall be accomplished by complying with either of the following provisions: (a) Locating the holding cell near an officer duty station that is staffed 24 hours a day.(b) Installing an electronic camera or cameras that are continuously monitored in the officer's duty station.Mich. Admin. Code R. 791.735