Searching the Cells
Once the news got out that people had escaped, the prison was searched completely to ensure that no one else had means of getting out. This is how the guards found the holes in the walls and discovered that Allen was part of it all.
Telling What He Knows
Allen worked with the police officers, telling them what he knew of the plan. However, he had no clue what had happened to them after they left him, so he couldn’t be much help. The cops had to investigate to determine if the men had made it across the ocean!