Sexual crimes increased significantly from 2009 to 2010, while alcohol and drug-related offenses declined, according to the 2011 Annual Security and Fire Safety Report released to the Stanford community Tuesday. The number of reported thefts and robberies also decreased.

According to the report, which was released by the Stanford Department of Public Safety, 21 forcible sexual offenses were reported in 2010, compared to 2008 and 2009, which each saw 10 cases. The report describes “forcible sexual offenses” as “any sexual act directed against another person, forcibly or against that person’s will.” Forcible rape, listed as a subcategory of “forcible sexual offenses,” saw the biggest increase, jumping to 13 reports in 2010 from three in 2008 and five in 2009. Eleven of the 2010 reported offenses occurred in student residences.

Liquor law violations, which includes “laws prohibiting the manufacture, sale, purchase, transportation, possession or use of alcoholic beverages” but excludes driving under the influence and drunkenness violations, saw the biggest drop, with 31 arrests in 2010 compared to 113 in 2009.

2010 also saw an increase in burglary reports. Vehicle burglaries rose to 78 cases in 2010 from 48 cases in 2009, while structural burglaries rose to 180 cases from 146 in 2009.

— Ivy Nguyen