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.; andLocal Police Departments, 1993, series NCJ 148822, April 1996Census 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 representativesample of the more than 17,000 publicly funded State and locallaw enforcement agencies in the United States. This reportfocuses on general purpose local police departments operated bya municipal or county government. Police departments withspecial jurisdictions such as parks, transit systems, airports,or school systems have been defined as special police and arenot included. The population served categories used in this report are basedon official 1990 Census Bureau counts for cities and counties. For some county police departments, the population served wasderived by subtracting the population of cities within thecounty that were served by municipal police from the overallcounty population.All 854 State and local law enforcement agencies in the UnitedStates with 100 or more sworn officers (as reported in the 1992BJS Directory Survey of Law Enforcement Agencies) received thefull-length LEMAS questionnaire. The 854 self-representing (SR)agencies were supplemented by a nationally representative sampleof agencies with fewer than 100 sworn officers. Thesenon self-representing (NSR) agencies were chosen using astratified random sample with cells based on the type of agency(local police, sheriff, or special police), size of populationserved, and number of sworn officers. The 2,416 NSR agenciesreceived a slightly abbreviated version of the LEMASquestionnaire that was mailed to the SR agencies.The initial mailing of the survey questionnaire was conducted inAugust 1993. The pay period containing June 15, 1993, was usedas the reference date for personnel-related questions and June30, 1993, for other questions. The data were collected by theBureau of the Census for the Bureau of Justice Statistics.After two follow-up mailings and additional telephone calls asneeded, a final total of 3,028 agencies responded to the LEMASquestionnaire, including 831 SR agencies and 2,197 NSR agencies.The overall response rate was 92.6%. The final databaseincludes responses from 1,827 local police departments, 918sheriffs' departments, 234 special police departments, and the49 primary State police departments.The base weight for all SR agencies is 1. For NSR local andspecial police departments, the base weight is 8, and for NSRsheriffs' departments it is 4. The final weight associated withevery agency, both SR and NSR, is the product of the base weightand a factor that adjusted for any non responding agencies ineach cell. This agency nonresponse factor was based on numberof sworn officers for SR agencies and on number of agencies forNSR agencies.Some responding agencies did not fully complete the LEMASquestionnaire. When an agency did not supply a response to anitem, a donor agency was randomly selected from respondingagencies in the same sample cell. The donor agency's value forthe item was placed into the nonresponding agency's responsefield with an indicator that the value had been imputed. Complete documentation regarding sampling procedures andnonresponse adjustments is available upon request. Data on the number of employees and on the amount of agencyexpenditures in this report are not comparable with figuresbased on the BJS Survey of Criminal Justice Expenditure andEmployment series. In the latter, these data are presented bygovernmental function, whereas in the LEMAS survey expendituresare classified by type of agency. For example, what might beattributed to sheriffs' departments in the LEMAS survey would beapportioned among various functions, such as police protectionand corrections, in the expenditure and employment series. Also, the LEMAS figures for operating expenditures includeemployee benefits, but the expenditure and employment figures donot.

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