The number and quality of investigations, arrests, and cases mean nothing without good prosecutors willing to file charges and move forward with trials when necessary. For more than 20 years, the United States Attorney for the Central District of California (Los Angeles) has maintained a unit of prosecutors who are dedicated to handling cases involving environmental crime. Sit down with Ed for his discussion with Assistant United States Attorneys (AUSA's) Matt O'Brien, Dennis Mitchell, and Mark Williams, three of the most experienced federal wildlife prosecutors in the country, to talk about some of their favorite cases and to learn about how the US Attorney's Office works with agencies like the US Fish and Wildlife Service.