From left, Jeff Levy, commissioner of the Fairfax County Oversight Committee on Drinking and Driving, William Hauda, an emergency room physician at INOVA Fairfax, Samara Kimmelman, a George Mason University graduate student, Capt. Bruce Ferguson, commander of Fairfax County Police Department’s Youth Services Division, and Mary Ann Sprouse, director of Drug, Alcohol and Health Education at George Mason, were part of a presentation on underage drinking at McLean High School Thursday, Jan. 17