When arresting officers arrive with their charges at a certain large urban jail, the first person they see when they come through the doors is a nurse. The nurse quickly evaluates the arrested person to determine whether a medical clearance is needed before the person can be booked. If a clearance is needed, the arresting officer has to transport the prisoner to a local ER and then return with the medical clearance in hand.

One evening (so the story goes), an arresting officer arrives at the jail bodily dragging a prisoner through the pre-book door by the backseat of his pants and coat. “This guy’s an a**hole,” the officer says. “He won’t do anything I ask. He just ignores me.” He then dumps the prisoner on the floor. The nurse kneels down by the prisoner briefly, looks up and says, “That’s because he’s dead!”

Medical clearances are a hugely important and often neglected part of the jail medical process.