BURLINGTON On April 12, Vermont State Police Senior Trooper Benjamin Katz observed Alexandra Rosenkrantz, age 19, operating a vehicle in an erratic manner on South Willard Street. A traffic stop was conducted in the South House Dorm parking lot on the campus of Champlain College. According to a police report, Rosenkrantz admitted to drinking one glass of wine earlier in the evening. During the course of the investigation Rosenkrantz provided a preliminary breath test, the results of which was a .135 percent blood alcohol content. Rosenkrantz was subsequently arrested and processed at the Williston State Police Barracks for Driving Under the Influence.