There are low security and high security cells. The 3 low security cells have a single layer of water on the floor. The walls are two-block-thick cobblestone generators, and the floor regenerates as well. In the 2 high security cells, similar to glacier's orb, the prisoner stands on a small platform with lava on the walls and floor that are too far to reach, meaning the prisoner will die if they jump off of their platform. In all 5 cells, guards can easily watch the prisoners via composters. Also, respawning and visitor entry is done from the ceiling. The guards can enter any cell with a keycard. Around the high security cells, many drowned sit in small boxes, presumably to prevent sleeping in beds (?). If the prisoners' beds are broken, lockdown will start; if they are obstructed with blocks and the prisoner is killed, they will spawn in a repeated death box in full view of the guards.
Outside defence
If anyone enters the prison by mining in through the walls or ceiling, or glitching through the floor, the guards will be notified and will have to kill the attacker. Anyone trying to enter via a portal will be put in a portal trap where if any block is broken the guards will also be notified. In the nether and overworld, there are an empty ring of chests. If anyone tries to break in, ban items will be filtered into chests and this will cause the attacker to get scared and the guards to get even more scared.
More security
Many doors in the prison are keycard locked, meaning it is harder to get places after infiltrating the guard areas. The guards have stasis chambers inside the prison so they can be called. There are multiple elder guardian chambers which affect the entirety of the prison, and there are various conduits to give the players inside the prison conduit power if the guards activate them. Most of the redstone lines in the prison are composed of observers, giving the guards a lot of visibility when they are in composters. Some killchecks are done in the nether, meaning it is somewhat difficult to smuggle items even into the main part of the prison. Guards can leave the prison via a toggleable portal. At one of the killchecks, the player will respawn in lava, die, and respawn a second time in the main path. In front of some of the beds are various blocks giving very little space to see the bed and making it impossible to through items on top, which will get picked up by hoppers anyway.
