 Most, if not all, gang prison violence is instrumental and is very intricately planned out.Gang members will often send out or receive encoded, in depth letters on violent attacks that are ordered to take place, other times, “…gang members used the drainage pipes of their in-cell toilets to communicate clandestinely across cellblocks…”.It has become clear that, “Extensive communication systems coordinated between inmates, criminal activity, and street gangs are common”, and a vast majority of the prison violence that occurs begins with these communication systems.