re: Stopping prison escapes

Prisons typically aren't exactly built on the best of land. If you make it over one or even two fences, you won't get far.

Elayn Hunt and Angola have ditches frickin everywhere and they're isolated enough that you'll know real quick who's out of place.

Look up prisons and you're bound to find them off of major road ways, surrounded by challenging terrain for humans to navigate. Sure there's outliers, but the terrain makes escape hard and construction of additional barricades harder(read more expensive).