Darrell L. Davis is head of the for-profit Committee for Action Programs Services Analytical Training Laboratory and of the nonprofit STEMversity, both of which promote science, technology, engineering and math (STEM) education. Mr. Davis is an advocate for STEM education for African-American students and professionals. Mr. Davis is a former laboratory director and supervisory chemist for the U.S. Drug Enforcement Administration south-central and northeast regional laboratories. He retired as laboratory director at the DEA Office of Forensic Sciences. He is a graduate of Prairie View A&M University.