With prisoners as bad as these, security is tight, to say the least. Inmates are under surveillance 24/7. Groups of guards make rounds every 15 minutes.
Black Dolphin is home to more than 700 prisoners. In total, these men have killed over 3,500 people. On average, each inmate has killed five people.
Do they tell the guards that on their first day?
Since they’re dealing with such dangerous criminals, the security at Black Dolphin goes much further than mere surveillance. Prisoners are kept behind three sets of doors, all made of steel. They live in a “cell within a cell.” Occasionally, two inmates are housed per cell, which are generally about 50 square feet.