Gang
Gang members often use graffiti to tell other gangs that an area is part of their "territory" and that other gangs should stay away. Marking territory, usually with spray paint, is sometimes called "tagging," however tagging usually means messages by one person, called a tagger. Tagger graffiti promotes the individual and is usually more artistic. As well as being a “no trespassing” sign telling rival crews to stay away, gang graffiti can send other messages. Gang graffiti may be a message about future violence or criminal activity. Members of a gang often dress similarly or have the same tattoos.