State and local law enforcement and homeland security officials, in partnership with local community members, are the first line of defence against the evolving threat posed by violent extremism -- ideologically motivated violence to further political goals. In recent history, the United States has faced violent extremist plots by neo-Nazis and other anti-Semitic hate groups, racial supremacists, and international and domestic terrorist groups. Given the critical role state and local law enforcement officers play in countering violent extremism (CVE), it is important that they receive high-quality CVE-related training. This book provides an assessment of the Department of Homeland Security (DHS) and Department of Justice's (DOJ) efforts to ensure the quality of violent extremism training that the departments provide or fund for state and local partners.