This subject was discussed on another forum. I just wanted to share an old Black Belt Magazine article.

From BLACK BELT MAGAZINE, July, 1974: "Karate in Prison: Menace, or Means of Spiritual Survival?" by Anne Darling and James Perryman, p. 21: Another ex-inmate says the first time he ever saw a karate technique was in Coxsacki, a New York prison, in 1948. "The different prisons had and still have their own fighting styles," he says. They were prison martial arts, not traditional styles. In fact, Kid Gavilan (world welterweight boxing champion, 1951-54) used a Coxsacki variation, and Floyd Patterson's peekaboo style was a Coxsacki variation, too. Because of limited space in prison, we learned wall-fighting techniques. Then a lot of former G.I.s in the joint had learned hand-to-hand combat - they came home, styled it, made it hip, and gave it soul." Miguel "Miky" Pinero, while an inmate of Sing-Sing, wrote a play called "Short Eyes" about the killing of a sex offender in a house of detention. The play is now a smashing success at the Public Theater in New York. Pinero describes his introduction to prison martial arts: "The first thing I did in the joint was to check out the style and learn to fight with a home piece - somebody from my neighborhood on the streets. I learned the Woodbourne shuffle, an evasion technique that first was used in the joint at Woodbourne and got passed around. Then I learned wall-fighting, and somebody taught me the Comstock style. The Comstock style, named for an upstate New York prison, involves what one inmate calls "the use of dirty fighting techniques." The object is to lure an opponent into thinking he is going to get a "fair one - then go for a quick, sneak kick to the ankle, kneecap, or family jewels." (End of Black Belt article)