A list of federally recognized tribes in the U.S. is available at https://www.govinfo.gov/content/pkg/FR-2021-01-29/pdf/2021-01606.pdf
ICE is an acronym for U.S. Immigration and Customs Enforcement. ICE is the largest investigative arm of the Department of Homeland Security. The agency is responsible for identifying and eliminating vulnerabilities in the nation’s border, and economic, transportation, and infrastructure security. ICE is organized into four major offices: Investigations, Intelligence, Detention and Removal Operations, and Federal Protective Service (FPS). The primary mission of ICE is to prevent acts of terrorism by targeting the people, money, and materials that support terrorist and criminal activities.
In 2017, local (county, municipal, and township governments), spent $99 billion on police protection. Police protection expenditures were 6% of all local government direct general expenditures in 2017. In real (inflation-adjusted) dollars, local police protection spending per capita was $282.
In 2017, there were 2,446,891 justice system employees in federal, state and local governments. There were 302,499 federal justice system employees, 68% (206,737) of whom worked in police protection. Almost 58% of all justice system workers (1,411,983 people) were employed by local governments, 62% of whom worked in police protection. In addition, 30% (732,409) of all justice system employees worked for states, and 447,793 of these state employees worked in corrections functions.
In 2017, federal, state, and local governments collectively spent $305 billion on police protection, judicial and legal functions, and corrections. At $149 billion, police protection accounted for the largest portion of justice system expenditures. Corrections expenditures across all levels of government totaled $89 billion and expenditures for judicial and legal functions totaled $66 billion.
In 2018, 86% of recruits completed basic training and 14% did not. Among the basic training outcomes measured, 4% of recruits did not complete basic training in 2018 because they voluntarily withdrew from their program, and 7% did not complete basic training for involuntary reasons (such as injury or illness, failure to qualify, or being withdrawn by their sponsoring agency). Eighty-eight percent of male recruits completed basic training in 2018, compared to 81% of female recruits.
According to the 2003 BJS Law Enforcement and Management Administrative Statistics (LEMAS) survey, 5% of local police departments operated at least one boat. Most local police departments serving 250,000 or more residents had boats. About 1% of local police departments operated at least one helicopter. The majority of local police departments serving 250,000 or more residents had a helicopter. Less than 0.5% of local police departments operated at least one airplane. For more detailed information regarding helicopters and fixed-wing aircraft, please see BJS Special Report Aviation Units in Large Law Enforcement Agencies, 2007.