Coming up with a thesis...
Sometimes you have a general topic like "juveniles" or "drug laws" in mind, but need to brainstorm a research topic.
Get started with these introductory resources to have a better idea of the controversies within your general topic.
Encyclopedias and Handbooks
Use these resources for background information and lists of resources to get you started.
Annual Reviews contain overviews of academic research within a given field.