A female student was arrested last week for possession of lysergic acid diethylamide, commonly known as LSD, according to a Metropolitan Police Department report.

At about 9:15 p.m. on April 5, a UPD officer received an anonymous phone call “stating that there is an odor of marijuana” coming from a second-floor Munson Hall room, according to the MPD report and the University crime log. The officer began searching the room with permission from the residence director on duty, according to the MPD report.

The room’s resident, 20-year-old Madelyn Roy, told the officer she had two tabs of LSD, one Adderall pill and about three grams of marijuana, according to the MPD report that named Roy.

The officer then found a “small piece of paper located in the second desk drawer from the top right side of [Roy’s] desk,” according to the MPD report. City police were notified of the incident and conducted tests that confirmed the tabs were LSD.

Roy was arrested in her room a little after midnight on April 6. She was then transported to the Second District police station for processing.

UPD recorded a total of 11 drug arrests in 2013, according to GW’s annual security report, which is the latest data available. The previous year, campus police recorded 20 arrests.