Notes In this Bulletin, "juvenile" refers to persons under age 18. This definition is at odds with the statutory age criteria for original juvenile court jurisdiction in delinquency matters in several States. In 10 States, all 17-year-olds are considered adults for purposes of criminal prosecution; in 3 States, all 16- and 17-year-olds are considered adults. FBI arrest data in this Bulletin are counts of arrests detailed by age of arrestee and offense categories from all law enforcement agencies that reported complete data for the calendar year. The proportion of the U.S. population covered by these reporting agencies ranged from 63% to 94% between 1980 and 2000, with the 2000 coverage being 65%. Estimates of the number of persons in each age group in the reporting agencies� resident populations assume that the resident population age profiles are similar to the Nation�s. Reporting agencies� total populations were multiplied by the U.S. Bureau of the Census� most current estimate of the proportion of the U.S. population for each age group.
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