Research on effective schools has identified a safe and orderly environment as a prerequisite for academic success, but in recent years educators and policy makers have expressed concern about possible increases in the incidence of school-related criminal behavior. Between 1976 and 1991, blacks were more likely to be threatened, and more likely to be injured, with a weapon in school than whites, with approximately 1 in 10 black high school seniors reporting being injured with a weapon in school. The most frequent type of victimization in high school was having had something stolen (approximately 4 in 10 overall). Nearly one in four reported that their property had been deliberately damaged or that they had been threatened without a weapon. A table gives percentages of high school seniors reporting being victimized in school by type of victimization and by race. Two figures illustrate trends in victimization with and without weapons. (SLD)