For many crews and gang members they see graffiti as art not a crime. It helps them express social and political messages and a whole genre of artistic expression. Gangs also like to mark their territory or to serve as an indicator of gang-related activities also known as 'tagging'. For others, they see it as vandalism. In America, marking or painting property without the property owners consent is considered defacement and vandalism, which is a punishable crime. In my area, theres a lot of tagging and personally I don't like it at all. But, I have seen some graffiti done and it is beautiful. But it is still considered a crime and cannot be tolerated.