This report contains revised data on the number of incidents in each Maryland local school system and school during the 2010-11 school year. The data have been disaggregated by gender and race. The incident counts for students with disabilities are also reported. Student incident data are available for reporting by Out-of-School Suspensions and Expulsions, In-School Suspensions, and Combined In-School and Out-of-School Suspensions and Expulsions. Each offense has been categorized into eight major categories. The following list shows which offenses are included in each major category. Offense definitions are described in the Maryland Student Records System Manual, 2011. The eight offense categories are: (1) Attendance; (2) Arson/Fire/Explosives; (3) Dangerous Substances; (4) Sex Offenses; (5) Weapons; (6) Disrespect/Insubordination/Disruption; (7) Attack/Threats/Fighting; and (8) Other.