The best way to locate articles is through library databases. Go to http://libguides.nvcc.edu/databasesbysubject and look under the categories Administration of Justice and Paralegal (ADJ, LGL) and Political Science (PLS) to find a list of relevant databases. Here are a few databases that you may find particularly helpful:
LexisNexis has law reviews, in addition to cases and regulations. Law reviews are journal articles with analysis.
For law reviews, select "Search By Content Type," then "Law Reviews."
Select the most important 2-4 words related to your topic. Put the word AND between each new word or idea; this tells the database to look for resources with ALL your terms.
patriot act AND terrorism
Use quotation marks ( " " ) around phrases (two or more words); this tells the database to look for the words in a specific way.
"patriot act" AND terrorism
Use the asterisk (*) to truncate a word; this tells the database to look for all words that have the same base. In the example below, search results would include "terror," "terrorist," "terrorists," and "terrorism."
"patriot act" AND terror*