3: Sleep time = Digging time(At least I think it is how this works...). Typically, prisoners will sleep on their own in freetime between 10pm and 8am (well somewhere inbetween there...) I've only been giving 1-2 hours of actual sleep schedule and the rest of the morning as free time. Could be considered cheaty. (Used to be lockdown = sleep time too)
Prisoners will dig instead of sleep if their freedom need is high enough.
One thing I do is have dogs patrolling around the walls of my prison blocks. Most of the time when they detect tunnels it'll be a false alarm, but if you check the area around it and get the tunnel flag again, its time to search or uninstall toilets.
Ah, I have excessive amount of yard/free time then. But prisoners still occasionally try, with their bare hands. They don't get more then 1 tile away from the toilet, what with cell rotation measures in place.
My opinion on dogs patrolling around the wall/outside the cell block, it is pointless, flags go away if you pass by it on screen so they don't accumulate if you casually pass by it while being the architect. You are not the warden, unless you want to be. You can't really be bothered to run 2-3 cell block shakedowns... every time your dogs throw up a flag right? (Shakedowns/Cell block searches are not 100% chance on finding tunnels, so if you want 100%, you gotta search more then once or to manually go through all the toilets yourself.)
Dogs detecting tunnels are micro, full of false positives and unnecessary waste of kennel space.
Yes, I know I used to do this too, but I have had zero results cause I NEVER act on dog flags and there were maybe these 3 times they threw up +10 flags over a small area... but I left it on overnight... and the prisoners already escaped or was hit by cell rotation.
Hm, I do do most of that stuff, including dog patrols inside cells. I might have to add some extra metal detectors in some places, though.
Workshop thing is problematic :/
Yup, workshop's wooden tool might be one of the biggest factors to escapees if you don't game the system with a segregated mega holding cell+amenities area.
And I reckon there are a bunch of ways contraband can get in... including outsiders throwing contraband over the fence if your prisoners have access to 15 squares/outdoor of the border fence.
... I set solitary time for escape attempts at 120 hours and for having tools at 12 hours. Murder/weapons are only half that time.
Solitary cells can meet every need, other then literacy and freedom, so they don't start causing problems as soon as they are freed. ... Kinda sad when solitary is more luxurious then my standard 1x3, 1 quality cells.
I might be able to bring that down to 1x2, 1Q or up to 1x3, 2Q. I thought I saw that I could build the toilet right under the bottom half of the bed. Showerhead can be placed on the same space as anything else other then another showerhead.