The hard spring steel material of the shank can be used to cut softer  iron, aluminum and other metals to make larger, longer "bone crusher"  stabbing weapons. Every metal chair, bunk, window frame, table and  chain-link fence is a potential edged weapon.
The jails and prisons are controlled by gangs such as the Mexican  Mafia, Nuestra Familia, Aryan Brotherhood and Black Guerrilla Family,  whose members diagram the human anatomy to accurately target the most  lethal parts of their victims. They've been videotaped in jails and  prison yards practicing and rehearsing edged-weapon attacks.
After just a couple of years in this gladiator school, most hardcore  gangsters have witnessed and participated in several edged-weapon  attacks. This means unless you have experience in bladed combat, the  gang members are more proficient than you are in a knife fight. Like a  gunfight, you won't want to take second place.
Jail and prison hits are often perpetrated by multiple attackers. A  three man team is most common; the designated "hit man," the secondary  "lay off" man and the "eye," or lookout.
The inmate manufactured weapons are commonly hidden in the "keester"  or rectum to escape detection from prison guards during searches. The  weapons are purposely left dirty to cause infections in the wounds  inflicted during the attack. Sometimes the blades are swabbed with blood  infected with HIV or hepatitis. Inmates don't abide by the rules of the  Geneva Convention in jails and prisons.
In addition to shanks and bone crushers, another common weapon is a  portion of a razor blade heated and melted into a plastic toothbrush.  The toothbrush becomes the handle and the weapon is used as a slashing  weapon.
A good friend, Deputy Mac Rojo, was slashed across the neck by a jail  inmate with such a weapon. As Mac fought with the inmate, he realized  that his defensive efforts were only increasing his heart rate and blood  loss. He turned to run to hit a panic button on the wall but fell  unconscious before reaching it. Luckily another deputy heard the  commotion and saw Mac fall. He nearly bled to death before he was saved  by the jail clinic staff.
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