I'd suggest starting here if the order of the day includes researching subjects related to criminal justice. These include corrections, rehabilitation and law enforcement. Most of the publications are in the Sprague Library collection as well.
This is a database of the gray literature publications that are available online or in the Don M. Gottfredson Library of Criminal Justice. These are items that have not been commercially published and are primarily technical reports, working papers, government and agency reports, and conference proceedings.
To research public policy and political science I'd suggest starting with PAIS, then if you need more move on to the general databases EBSCO Academic Search Premier and ProQuest Central, along with the sociology databases below.
PAIS includes articles that touch on areas of public concern and potential legislation. The articles selected focus upon making and evaluating public policy, not theoretical discussions of policy or political science.