Annual Survey of Jails: Jurisdiction-Level Data, 1998

This collection provides annual data on jail populations
across the nation and examines the "spillover" on local jails
resulting from the dramatic growth in federal and state prison
populations. These data are used to track growth in the number of
jails and their capacities nationally, changes in the demographics of
the jail population (including sex, race, and adult or juvenile
status), supervision status of persons held, prevalence of crowding
issues, and a count of non-U.S. citizens within the jail population. A
special addendum to the 1998 survey included data on the prevalence
and results of drug testing and treatment in jails.

本数据集提供全国监狱人口的年度数据，并分析联邦与州监狱人口激增对地方监狱产生的“溢出效应”（spillover）。这些数据用于追踪全国监狱数量及其容量的增长趋势、监狱人口的人口统计学特征变化（包括性别、种族及成年或未成年身份）、在押人员的监管状态、拥挤问题的普遍程度，以及监狱人口中非美国公民的数量。1998年调查的特别附录包含监狱内毒品检测与治疗的普及情况及结果数据。