Prisons in a superhero universe have to deal with a lot of problems unknown to real world prisons and they’re justly famous as revolving doors. There are several different approaches to solving the problem of super inmates.
Some prisons have a way to Deactivate super powers, either constantly to prevent break out attempts or with a weapon used to subdue violent prisoners. Some might even have a way to remove powers permanently. Though if the authorities have a way to permanently remove super powers, this would make many superheroes view the government with extreme fear and distrust. Another big problem with this, is that it usually only works on mutants. Of course Tech powered prisoners can have their toys taken away, but government authorities are usually helpless against Magic or Alien criminals.
Some prisons will try to build custom build cells to resist each individual inmate’s powers. Obviously this is a very expensive option but not as expensive as the next 2. The biggest problem with this is that sometime the measures needed to counter a particular villain’s Power will fall under the class of cruel and unusual punishment.
Leavenworth On Steroids
Some prisons will be fortresses with enough firepower to quickly subdue all but the most powerful super villains.
Devil’s Island On Steroids
Some prisons will be in extremely remote and dangerous locations like on the ocean floor, in the arctic or on the moon. To make escapes much less likely.
Australia On Steroids
Some might say that Australia is already on steroids, but in a superhero world some villains might get sent to places of no return, like whole other planets or universes! There are even small pocket universes where the prisoners can be kept in total isolation, and the only reason they don't starve, is that these places are outside of time making them eternal cells.
Naturally, only the most dangerous monsters or villains would be sent to such a place, but strangely it's usually the heroes who make the decision to send someone there, and they do it without even consulting any legal authority!
No one wants to give the government the Power to banish people to Hell, but we can always trust the guys in tights who won't tell us their names.
So what are we going to have?
Or will we have more than one possibility?
If we play villains can a defeat land us in prison, leading to an escape mission?
Or will in just cost us money to bribe bail or bond?