Generally the social problems you are researching are very broad when you start (poverty, crime, discrimination,. . .) .You will want to narrow down the social problem to one aspect: crime to youth gangs, poverty to childhood hunger, etc. So you will want to start with resources that can give you a good overview.
Here are some good sources for finding legislative histories of Acts.
Although books are not required for your assignment, they can give a lot of information on the history, development and success. Search for books by the name of your policy:
This will only search the Library holdings, not journal articles, see the Libraries main page for the full search capabilities. Remember to log into the Library system toi see all the items available to you.
One good way to get information on an Act is to follow it through the government process. Below are some sources which might help. In these sources you should look for: