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1 The Number of agencies reported here is the result of a weighted sample and not an exact enumeration. Source: U.S. Bureau of Justice Statistics, State and Local Police Departments, 1990, February 1992.; and Local Police Departments, 1993, series NCJ 148822, April 1996 Census of State and Local Law Enforcement Agencies, 1996, series NCJ 164618, June 1998. http://www.ojp.usdoj.gov/bjs/sandlle.htm * 1993 The Law Enforcement Management and Administrative Statistics (LEMAS) survey collects data from a nationally representative sample of the more than 17,000 publicly funded State and local law enforcement agencies in the United States. This report focuses on general purpose local police departments operated by a municipal or county government. Police departments with special jurisdictions such as parks, transit systems, airports, or school systems have been defined as special police and are not included. The population served categories used in this report are based on official 1990 Census Bureau counts for cities and counties. For some county police departments, the population served was derived by subtracting the population of cities within the county that were served by municipal police from the overall county population. All 854 State and local law enforcement agencies in the United States with 100 or more sworn officers (as reported in the 1992 BJS Directory Survey of Law Enforcement Agencies) received the full-length LEMAS questionnaire. The 854 self-representing (SR) agencies were supplemented by a nationally representative sample of agencies with fewer than 100 sworn officers. These non self-representing (NSR) agencies were chosen using a stratified random sample with cells based on the type of agency (local police, sheriff, or special police), size of population served, and number of sworn officers. The 2,416 NSR agencies received a slightly abbreviated version of the LEMAS questionnaire that was mailed to the SR agencies. The initial mailing of the survey questionnaire was conducted in August 1993. The pay period containing June 15, 1993, was used as the reference date for personnel-related questions and June 30, 1993, for other questions. The data were collected by the Bureau of the Census for the Bureau of Justice Statistics. After two follow-up mailings and additional telephone calls as needed, a final total of 3,028 agencies responded to the LEMAS questionnaire, including 831 SR agencies and 2,197 NSR agencies. The overall response rate was 92.6%. The final database includes responses from 1,827 local police departments, 918 sheriffs' departments, 234 special police departments, and the 49 primary State police departments. The base weight for all SR agencies is 1. For NSR local and special police departments, the base weight is 8, and for NSR sheriffs' departments it is 4. The final weight associated with every agency, both SR and NSR, is the product of the base weight and a factor that adjusted for any non responding agencies in each cell. This agency nonresponse factor was based on number of sworn officers for SR agencies and on number of agencies for NSR agencies. Some responding agencies did not fully complete the LEMAS questionnaire. When an agency did not supply a response to an item, a donor agency was randomly selected from responding agencies in the same sample cell. The donor agency's value for the item was placed into the nonresponding agency's response field with an indicator that the value had been imputed. Complete documentation regarding sampling procedures and nonresponse adjustments is available upon request. Data on the number of employees and on the amount of agency expenditures in this report are not comparable with figures based on the BJS Survey of Criminal Justice Expenditure and Employment series. In the latter, these data are presented by governmental function, whereas in the LEMAS survey expenditures are classified by type of agency. For example, what might be attributed to sheriffs' departments in the LEMAS survey would be apportioned among various functions, such as police protection and corrections, in the expenditure and employment series. Also, the LEMAS figures for operating expenditures include employee benefits, but the expenditure and employment figures do not. * These tables are based on figures supplied by the United States Census Bureau, U.S. Department of Commerce and are subject to revision by the Census Bureau. Copyright © 2006 Photius Coutsoukis and Information Technology Associates, all rights reserved. |