Age-specific arrest rates, the average ages of arrestees, and race-specific arrest rates are tabulated for Crime Index, violent crime, property crime, each Crime Index offense, and selected Part II offenses (forgery and counterfeiting, fraud, embezzlement, stolen property, weapons violations, sex offenses, drug abuse violations, and gambling) for each of the 28 years during the period 1965- 1992. Included are age breakdowns for juveniles and adults. An age-specific arrest rate refers to the number of arrests made per 100,000 inhabitants who belong to a prescribed age group. Technical Note A describes the computational procedures used to derive age-specific arrest rates. Technical Note B describes the methodology used to compute the average of the arrestees. The average age of the arrestees reflects noncriminal factors such as the age composition of the U.S. population; therefore, any shift in the average age of the arrestees should not be immediately associated with a change in criminal pattern. A race- specific arrest rate refers to the number of arrests made per 100,000 inhabitants who belong to a prescribed race. Race-specific data used in this publication have been updated, and may differ slightly from the national average as earlier released in "Crime in the United States." The rates represent that portion of the population that contributed race statistics related to the given offenses. The population coverage for race statistics is lower than that for age statistics due to the historical reporting patterns of Uniform Crime Reporting arrest data.