The following databases are good starting points for research.
Academic Search Complete - Contains both scholarly and popular articles (i.e. newspapers and magazines) on a broad range of topics.
JSTOR - Full-text database of major scholarly journals from their earliest issues to within a few years of current publication. NOTE: If you are researching a topic that is very recent (ex: police body cameras) you may not find many articles in JSTOR.
The following databases focus on particular subjects. These databases can be very helpful to use if you know which field or discipline is studying your topic. NOTE: Some of your topics fall under multiple subjects, so you'll want to look at several of these databases.
ERIC - Search for journal articles and reports in education
SocINDEX - Search for articles in the field of sociology
Sociological Abstracts - Search for international literature in sociology and related social and behavioral science disciplines
Political Science Complete - Search for journal articles in political science and public policy
EconLit - search scholarly literature in the field of economics
Women's Studies International - Search for articles in core disciplines in Women's Studies to the latest scholarship in feminist research