In response to a legislative mandate to gather statistics on school-related crime in California public schools, the state department of education prepared this preliminary report based on survey data reported by 914 California school districts covering the period from September 1, 1980, to February 1, 1981. During this period 105,328 incidents of school crime and violence were reported, with a total cost to the districts of 10,329,390 dollars in property damage. The report describes the methodology used to collect data and presents tables describing crimes by type, location, number, time of occurrence, and monetary loss to the districts. Programs and strategies found effective in reducing the incidence of crime and truancy are described, and the School-Related Crime Data Report used in the study is provided. (JEH)