The UCR Program collected data on crimes selected as an index to represent crime in the United States. These index crimes are murder, rape, robbery, aggravated assault, break or entering, larceny-theft, and motor vehicle theft. Although not an index crime, data on arson are also collected, analyzed, and reported through the UCR Program. This report indicates that crime in Maryland decreased overall by 8 percent in 2009 (215,921) to 233,566 in 2008. Violent crime decreased 5 percent. Violent crime consists of murder, rape, robbery, and aggravated assault. Property crime decreased 8 percent during the same period. Property crime encompasses breaking or entering, larceny, theft, and motor vehicle theft. Arrests throughout the State decreased 6 percent compared to 2008. There were 285,788 arrests reported in 2009 compared to 303,270 in 2008. Of the total arrests, 244,041 or 85 percent were adults. This is a decrease of 4 percent over 2008. Juvenile arrests accounted for 41,747 (15 percent) of arrests, constituting a 13-percent decrease from 2008. No Maryland law enforcement officers died in the line of duty during 2009. There were 3,719 Maryland law enforcement officers assaulted in 2009, a 7-percent decrease. There were 18,772 full-time law enforcement officers in 2009 compared to 15,619 in 2008. There were 2.8 full-time law enforcement officers per 1,000 population. Maryland's crime reporting has evolved to include domestic violence offenses, hate crimes, and carjacking offenses, as well as arrests for these offenses. Data on these offenses are released in separate publications. Extensive tables and figures