>Use crowbar to dig tunnel out of exitless box.
You locate the other door on the other side of the room that you managed to COMPLETELY MISS when reading the rest of the story.

Probly to watch prisoners, but that dosent make sence.
theres bars right there
If a prisoner were to hide somewhere that you couldn't see through the bars, such as under them or behind the door, you wouldn't be able to see them. Yet at this point you haven't seen a single person come through here in the 3 hours you've been here.