As a result of the sharp increases in the costs of vandalism in the last few years, technical developments in intrusion devices have been rapid. This report provides an overall view of vandalism prevention emphasizing the various devices for detecting and reporting unauthorized entry into buildings and giving information about the activities of those who have entered. Stress is placed on the deterrence of vandalism through the use of appropriate materials and design in school buildings. An annotated bibliography provides guidance for those who wish to pursue the subject further. (Author/JF)