>>2939450
Another thing that comes to my mind: Make a seperate room inside, perhaps a smaller one, for temporary holding, with a divider that can only be operated from the outside.
You might want access at some point and that puts you at risk. With the proposed partition you could only enter when occupants are safely contained.
Also a good design detail you commonly find in jails: The door has some sort of handle on the inside but it is a handle that disadvantages you. The shape allows gripping, pulling and pushing but only so much becauye you can only get a force fit not a shape fit on it.