In this chapter, the following terms have the meanings indicated. Terms Defined. Critical, life-threatening incident means an event which: Results in an individual being charged with a threat of mass violence directed at a school under Criminal Law Article, §3-1001, Annotated Code of Maryland; Meets the criteria for a threat of mass violence but does not result in criminal charges due to the age limitation under Courts and Judicial Proceedings Article, §3-8A-03(f), Annotated Code of Maryland; or Occurs on school grounds and: Results in death or serious bodily injury; or Requires activation of a school’s emergency plans and substantially disrupts the normal or orderly operation of a school. School grounds means: The premises where the school is located and operated, including all buildings, physical structures, and real property owned or leased by the local school system for the operation of a school; School transportation vehicles either owned by or contracted for by the local school system for the purposes of student transportation; and Locations used for school sponsored activities or approved by the school or school system for attendance of students as part of a field trip. “Serious bodily injury” means an injury inflicted on another individual that results in: A substantial risk of death; Extreme physical pain; Protracted and obvious disfigurement; or Protracted loss or impairment of the function of a bodily member, organ, or mental faculty in accordance with 18 U.S.C. §1365(h)(3).