I have done a theoretical essay and to find out the answer to my questions I used literature study as my method. You can kind of say that I have used the literature as my empirical material, so my essay is in one way a qualitative study. I choose to have a social psychologist perspective to approach my questions. To answer the questions I have used a couple of researchers who a find relevant to answer my questions. I found Meads symbolic interactionism together with Goffmans theatremeatphor as an important theory to explain the social interaction. To explain why the destructive groups get barred from the community I have used Backers stampletheory. To describe what I think is good social work I have used Antonovskys KASAM-concept and his salutogenes-conduct. By writing this essay I have learned that groups have a great influence on the individual and destructive groups in special. The work of this essay has giving me knowledge how much theses destructive group's means to the individual and how different processes influence them.