Private DUI Investigator Gilbert Quinonez spent 31 years with the Long Beach Police Department before retiring to do defense work. During his police career, his assignments included patrol, DUI task force, narcotics, Criminal Intelligence, and later he served as Director of the Long Beach Crime Lab. As Crime Lab Director, he oversaw toxicology, blood alcohol and crime-scene analysis. Investigator Quinonez graduated with an M.A. in Criminal Justice from California State University, Long Beach. He speaks fluent Spanish.