The study of subcultures often involves the study of symbolism attached to clothing, music and other visible things by members of subcultures, and also the ways that these same symbols are seen and understood by members of the dominate culture. Subcultures have been documented by others for a long time. In some cases—such as homeless people, criminal gangs or skateboarders—subcultures have had laws created to control or end their activities. But subcultures also talk about themselves, very often.