United States Department of JusticeThe Department of Justice serves as counsel for the citizens of the United States. It represents them in enforcing the law in the public interest. Through its thousands of lawyers, investigators, and agents, the Department plays the key role in protection against criminals and subversion, ensuring healthy business competition, safeguarding the consumer, and enforcing drug, immigration, and naturalization laws. Click on Agencies to see a list of agencies included in the DOJ.