To determine the nature of law enforcement services provided on campuses in the context of the Student Right to Know and Campus Security Act, the U.S. Department of Justice surveyed four-year institutions of higher education in the United States with 2,500 or more students. This report presents data collected from nearly 600 campus law enforcement agencies. Three-fourths of these agencies used sworn police officers while the remainder relied on nonsworn security officers. Public campuses were more likely (93 percent)to have sworn officers than those under private control (43 percent); however, about three-fourths of the private universities with 10,000 or more students used sworn police. Sworn campus police officers typically had to pass through many more screening devices and undergo three to four times as much training as their nonsworn counterparts. Expenditures for law enforcement at private institutions were nearly twice that of public campuses. Nearly all agencies operated general crime prevention programs on campus, and about two-thirds had programs aimed specifically at rape prevention. Other topics covered by the report include agency functions, personnel characteristics, equipment, computers and information systems, and policy directives. General campus characteristics, including crime statistics, are also summarized. Data are presented in 44 tables, text, and graphs. Five appendices provide additional data. A copy of the survey is attached. (JLS)