Formulating Freedom

As fate would have it, the Doctor who took care of Warren was now administering to Jack's ailments. Using a quietly methodical method, he checked Jack out completely. Other than the head trauma and bruising with minor abrasions, he was fit. Dr. Watson instructed the duty officer to check the prisoner every hour and wake him; failure to do so could mean an unnecessary death and the young constable would be held responsible. 
With his face washed and bandaged, Jack looked improved. Warren watched him for a while and then went to find out about the other man. The desk Sargent told him which hospital (The London), but it was too late for visiting hours.
Still besotted with worry, Warren sat behind a desk, chewing on a pencil. I need to come up with a plan, some way to get Jack out of here and not get caught in the process. Time to use my detective skills in reverse. Making a rough sketch of the building layout, Warren maps out potential escape routes and the problem areas of each. Creating a log of man power and known schedules, he could see a possibility, a glimmer of hope for this mad escape plan to rescue Jack.
Checking on Jack, one more time, he suddenly remembers his important discovery; desperately wishing he could tell Jack the news, he writes a note and then places the paper in the pants pocket of his slumbering friend. Giving the keys back to the constable on watch, instructs him to call, should anything change in the prisoner's condition.
Warren leaves the police station and heads for home; nothing left to be done at 2 a.m., except sleep and heaven knows he could use a week of that!