Gang codes: Patterns on paper
Gang codes can be very ornate symbols that bear no resemblance to the English alphabet. Gangs use these symbols to confuse the reader and hide a covert message. But some gang members use the English alphabet and hide their message in other ways. These can often be patterns on paper that can only be deciphered when you see how the pattern is arranged.
I received a seven-page document that was confiscated in a correctional facility. Sample pages are shown in (Illustrations #1 - #3).