There was a 2.3-percent decrease in reported crimes that occurred at schools for 2009. The most frequently reported day in which school crimes occurred was Thursday (20.1 percent). The most frequently reported time frame for reported school crime was noon to 1 pm (10.7 percent). The most frequently reported crime category was crimes against persons, and the most frequently reported offense for all 3 years was "simple assault." Where the gender of offenders was known, 54 percent of school crimes involved males and 21.8 percent involved females. The most frequently reported victim injury type was "none" at 55.8 percent. The second most frequently reported victim injury type was "apparent minor injury" (42.0 percent). The most frequently reported victim-offender relationship was "acquaintance" (50.2 percent). The second most frequently reported victim-offender relationship was "otherwise known" (17.5 percent). The crime category with the most frequently reported arresting offenses was crimes against persons. The most frequently reported arrestee gender was male (72.7 percent). The most frequently reported weapon type was "personal weapons" (76.4 percent); and the second most frequently reported weapon type was "knife/cutting instrument" (8.8 percent); firearms accounted for 2.7 percent of weapons used in school crimes. The most frequently reported juvenile arrestee disposition was "referred to other authorities" (78.5 percent), such as juvenile court, probation, etc. The most frequently reported clearance type was "cleared by arrest" (88.2 percent). The average ages for offenders, victims, and arrestees are reported. This study used data submitted to the TBI through the Tennessee Incident Based Reporting System (TIBRS). A total of 40,771 (2.2 percent) of the 1,864,544 total offenses were submitted as occurring at a school during the years 2007-2009. 34 tables