The first campus police department was established in 1894 at Yale University. During the late 1940's and early 1950's, the campus police were employed mainly to provide traffic and parking control. The campus riots of the 1960's and 1970's resulted in an increase in the number of campus police departments. The typical IACLEA institution has over 5,000 students, provides oncampus housing, and has its Director of Public Safety report to the Vice President for Administration. The armed police officers have full police powers and enforce not only university rules but also State law. These officers have equal authority with local police officers when off campus, but local police enter the campus by university request only. These institutions employ university students as special patrol officers and dispatchers. The typical non-IACLEA institution has less than 5,000 students and provides oncampus housing facilities for its students. The campus security officers have no police powers and are not armed with either guns, night sticks, or mace. They are restricted to the campus, although local police are encouraged to routinely patrol the campus. Tabular data and 12 references are included.