Bear with me, this is vague.
I read a sci-fi book a long time ago, and it was written even longer ago, about how society changed when humans learned to teleport. No one really knows how it happened, probably some evolutionary thing. But, with focus and concentration, you could teleport yourself and whatever you could carry. There was a definite distance limit depending on talent and training. The best were Class M, they could teleport 1000 miles, give or take.
As you can imagine, prisons were a bit difficult. One of the things that you needed to know is where you were. Otherwise, you could "blue jaunt" and simply disappear never to be seen again. Much the same thing happened to people who tried to teleport too far beyond their abilities. Prisons were all solitary confinement and you were drugged and brought to your cell unconsious so that you didn't know where you were.
If there are means of boosting the range of feystep, this could be a useful book to read. Unfortunately it has been a long time since I knew the title or author.