Outside the cell, Master Duo did not enter immediately. Instead, he circled the cell to inspect the perimeter, paying particular attention to the small window.
"Master Duo, did you spot anything?"
Over the years, Zheng Zhaoyang had learned many forensic investigation techniques from Master Duo. In the past, he could handle smaller cases without needing Master Duo’s help. But today? Zheng Zhaoyang had been looking for a long time, yet he couldn't figure out how the perpetrator had so easily cut through such thick steel bars.
Chapter 482