Any drug that has been in your blood stream gets absorbed by the hair follicles in your scalp. As your hair grows out of these follicles, the hair strands also pick up traces of these drugs. The lab analyzes the shaft of the strand of hair for any drug metabolites present.
Bay Area airports prep for private jets in for Super Bowl 50 at Levi's Stadium. The Bay Area's airports are preparing for an influx of private jets for Super Bowl 50.
Delta Air Lines will fly both the  Atlanta Falcons and the New England Patriots to the Super Bowl, after flying the two teams as their chartered carrier all season. Atlanta-based Delta is a major charter carrier for NFL teams and other professional and collegiate sports teams.