It is more a combination of indicators to look for nowadays, including mannerisms, tatoos, signs and:
- clothing color
- designer names
- sport teams
- clothing manufacturers
- how the clothing is oriented and worn
- etc.
You would be surprised how much you can find out simply by using Google. Gangbangers are notorious for posting pictures of themselves in full regalia, along with other members of their gang, on the Internet. So browse around Facebook, MySpace, etc., you will be surprised what you can learn.
I remember a case that was made in part due to the photographs the banger had taken of himself standing over the body of a rival gang member, while holding the murder weapon across his chest, and FaceBook did a nice job of time stamping the post, with a couple of hours of the estimated time of death. He was gracious enough to proudly post that on FaceBook for everyone to see. :screwy:
They looked really great during his trial.