Alright Considering the 'requests' for a post about the defenses of the prison, I'm making one

First and most importantly, the Prison looks like a cross between the Parthenon and Guantanamo Bay.

The Prison structure itself if is about 50 sq miles( viz Considering that the city is about 1000 sq miles(a bit on the larger side of most American cities)).

The Prison has an outer wall of thirty feet in height which is about ten feet thick at the base and four feet thick at the top. Then there is a minefield completely in a spherical fashion for about hundred metres, then there is a moat with boats with armed guards (who have to be appointed as of yet). Then there is an inner wall of ten feet in height.

The Prison has the regular Defense system of an American supermax with adaptions to the technology of this RP's time, with the biggest feature being, if the alarm is triggered, the prison immediately goes into lockdown, locking out all compartments and the prison completely with solid steel bars and trapping everyone irrespective of role inside and this Lockdown can be unlocked only by the Guild Master of the Justice Guild and/or the Head of the Leader's Guild who are the two people who have the key to reverse the lockdown.