These are some of the organizations may provide some information on social policy.
To find background information about the social work policy or policies you're researching:
Search these databases for scholarly journal articles about social policy issues.
These websites all summarize and provide official stances and provide opinions on legislation that is currently in process, relevant to Social Work. Check their "Advocacy" sections!
If you're researching youth violence, these are a few of the organizations that provide background information on social policies on that topic.