Robert D. Garcia recalls his adventures as an undercover narcotics officer in this memoir. Prior to working undercover, he worked in patrol, in crime scene investigation, as a fingerprint examiner, police instructor, firearms instructor, and even as an international police officer with the United Nations. While he enjoyed those jobs, it wasn’t until he became an undercover agent that he felt at home. Working along the southern border in New Mexico and Texas, his decades in law enforcement taught him that the majority of crime in the United States is the result of the illegal narcotics trade—and taking drugs off the streets makes an impact. He highlights a number of topics, including misconceptions about undercover agents, preparing for an undercover role, operations, and how technology has become so critical to law enforcement. He also shares accounts from other law enforcement agents, detailing the good and bad side of humanity. Whether you’re in law enforcement, interested in entering the field, or curious about what it takes to be an undercover agent, you’ll enjoy The Thin Blue Line.