The security system at Haixi Prison is indeed quite impressive.
This checkpoint is still over ten kilometers from the prison, yet the defensive setup is already very high.
On both sides of this checkpoint are guard towers with machine gun sites.
Beneath the guard towers, there are gatehouses with hidden bunkers on both sides.
On the two mountains beside it, there are also concealed security personnel.
This geographical location itself is flanked by mountains and encloses a valley, making it easy to defend and hard to attack.
Liu Zhizhong's car climbed up a long gentle slope, then reached the top, directly exposing it to the checkpoint's line of sight.
In front of the formidable roadblocks, Liu Zhizhong stopped the car.
He went forward with Liu Dongmei, completing the necessary registration and indicating they had an appointment, which the checkpoint also confirmed.
Even though Liu Zhizhong had a gun permit, he still had to leave the pistol behind, along with his documents.
