This title explores the Federal Bureau of Investigation (FBI), its history, and its role in today's fast-moving world of law enforcement. Readers will learn how this federal agency, as the main investigative force of the United States government, makes sure that laws are obeyed and crimes are prevented. Areas explored will include how agents are selected and trained, how the FBI investigates terrorism, and how it gathers intelligence and collects evidence in a variety of ways. Aligned to Common Core Standards and correlated to state standards. Abdo & Daughters is an imprint of Abdo Publishing, a division of ABDO.