The front door of the building was not locked at all!
In other words, Bowen and the entire police station were all fooled by this judge!
If Bowen had pushed the door directly instead of smashing the glass when he first arrived downstairs, then he could have easily survived!
If the police had not broken through the side door but tried to break through the front door, then they could have saved Bowen!
However, none of them did. The judge deliberately left such a big hole in the unlocked front door, as if it was to tease and mock all of them!
Such a simple thought trap easily fooled everyone. All the strange and abnormal events that Bowen encountered at the beginning made them subconsciously choose to completely believe the judge's words.
This was not the most ironic part.