The purpose of the photocopied sheet that was superimposed on the question paper and the correction slip was to supply the details of the plan of escape to Evans without uttering a single word. It was a well-thought out meticulous plan. It was also meant to make the authorities believe that the wounded man was McLeery himself. And at that moment, it worked as was thought and the authorities got trapped. However, there is a wise saying ‘iron cuts iron’. Just like that, if that superimposed question paper and correction slip helped Evans, then the same also helped the Governor in locating the place where Evans was hiding.
The six-digit number of the correction slip i.e., the index number and the centre number 313/271, helped the Governor. He put these numbers together and with the help of the Ordinance Survey Map of Oxfordshire reached the hotel where Evans had decided to hide for the day.