In 1999 Alaska experienced an increase in the total number of violent crimes and a decrease in property crimes. This was coupled with a 4.8-percent increase in the population base represented by reporting agencies. In 1999, 14.5 percent of the total crimes were violent crimes, and 85.5 percent were property crimes; in 1998, 13.4 percent of the crimes were crimes against people, and 86.6 percent were crimes against property. For a population of 567,947, there were 4,388 crimes known to police in 1999. Of these, 635 were violent crimes (murder, forcible rape, robbery, and aggravated assault), and 3,751 were property crimes (burglary, larceny-theft, and motor vehicle theft). Data on index crimes are shown for 1995-99. Data are presented separately for murder, rape, robbery, aggravated assault, burglary, larceny-theft, and motor vehicle theft. For each type of offense, arrest distribution is presented by age, sex, and race. Data on murder include weapon type; the relationship of the victim to offender; and victim distribution by age, sex, and race. Rape data include distinction between forcible rape and attempted rape. Data on robbery include weapon type, calendar month, and place of occurrence. Data on aggravated assault include weapon type and calendar month, and data on burglary include type of entry and place and time of occurrence. Statewide tables present offenses known to law enforcement; property stolen by classification; property stolen by type; age, sex, and race of persons arrested 18 years of age and over; age, sex, and race of persons arrested under 18 years old; law enforcement officers killed or assaulted; and arson offenses known to law enforcement. Data are also presented separately for each law enforcement agency.