(g) On and after July 1, 2015, all suspensions pursuant to this section shall be in-school suspensions, except a local or regional board of education may authorize the administration of schools under its direction to impose an out-of-school suspension on any pupil in (1) grades three to twelve, inclusive, if, during the hearing held pursuant to subsection (a) of this section, (A) the administration determines that the pupil being suspended poses such a danger to persons or property or such a disruption of the educational process that the pupil shall be excluded from school during the period of suspension, or (B) the administration determines that an out-of-school suspension is appropriate for such pupil based on evidence of (i) previous disciplinary problems that have led to suspensions or expulsion of such pupil, and (ii) efforts by the administration to address such disciplinary problems through means other than out-of-school suspension or expulsion, including positive behavioral support strategies, or (2) grades preschool to two, inclusive, if during the hearing held pursuant to subsection (a) of this section, the administration determines that an out-of-school suspension is appropriate for such pupil based on evidence that such pupil’s conduct on school grounds is of a violent or sexual nature that endangers persons. An in-school suspension may be served in the school that the pupil attends, or in any school building under the jurisdiction of the local or regional board of education, as determined by such board. Nothing in this section shall limit a person’s duty as a mandated reporter pursuant to section 17-101a to report suspected child abuse or neglect.

(2) Expulsion proceedings pursuant to this section, except as provided in subsection (i) of this section, shall be required for any pupil in grades kindergarten to twelve, inclusive, whenever there is reason to believe that any pupil (A) on school grounds or at a school-sponsored activity, was in possession of a firearm, as defined in 18 USC 921, as amended from time to time, or deadly weapon, dangerous instrument or martial arts weapon, as defined in section 53a-3, (B) off school grounds, did possess such a firearm in violation of section 29-35 or did possess and use such a firearm, instrument or weapon in the commission of a crime under chapter 952, or (C) on or off school grounds, offered for sale or distribution a controlled substance, as defined in subdivision (9) of section 21a-240, whose manufacture, distribution, sale, prescription, dispensing, transporting or possessing with intent to sell or dispense, offering, or administering is subject to criminal penalties under sections 21a-277 and 21a-278. Such a pupil shall be expelled for one calendar year if the local or regional board of education or impartial hearing board finds that the pupil did so possess or so possess and use, as appropriate, such a firearm, instrument or weapon or did so offer for sale or distribution such a controlled substance, provided the board of education or the hearing board may modify the period of expulsion for a pupil on a case-by-case basis, and as provided for in subdivision (2) of subsection (c) of this section.

(c) (1) In determining the length of an expulsion and the nature of the alternative educational opportunity to be offered under subsection (d) of this section, the local or regional board of education, or the impartial hearing board established pursuant to subsection (b) of this section, may receive and consider evidence of past disciplinary problems that have led to removal from a classroom, suspension or expulsion of such pupil. (2) For any pupil expelled for the first time pursuant to this section and who has never been suspended pursuant to section 10-233c, except for a pupil who has been expelled based on possession of a firearm or deadly weapon as described in subsection (a) of this section, the local or regional board of education may shorten the length of or waive the expulsion period if the pupil successfully completes a board-specified program and meets any other conditions required by the board. Such board-specified program shall not require the pupil or the parent or guardian of the pupil to pay for participation in the program.

(e) If a pupil is expelled pursuant to this section for possession of a firearm, as defined in 18 USC 921, as amended from time to time, or deadly weapon, dangerous instrument or martial arts weapon, as defined in section 53a-3, the board of education shall report the violation to the local police department or in the case of a student enrolled in a technical education and career school to the state police. If a pupil is expelled pursuant to this section for the sale or distribution of a controlled substance, as defined in subdivision (9) of section 21a-240, whose manufacture, distribution, sale, prescription, dispensing, transporting or possessing with the intent to sell or dispense, offering, or administration is subject to criminal penalties under sections 21a-277 and 21a-278, the board of education shall refer the pupil to an appropriate state or local agency for rehabilitation, intervention or job training, or any combination thereof, and inform the agency of its action.

(f) Whenever a pupil is expelled pursuant to the provisions of this section, notice of the expulsion and the conduct for which the pupil was expelled shall be included on the pupil’s cumulative educational record. Such notice, except for notice of an expulsion of a pupil in grades nine to twelve, inclusive, based on possession of a firearm or deadly weapon as described in subsection (a) of this section, (1) shall be expunged from the cumulative educational record by the local or regional board of education if a pupil graduates from high school, or (2) may be expunged from the cumulative educational record by the local or regional board of education before a pupil graduates from high school if (A) in the case of a pupil for which the length of the expulsion period is shortened or the expulsion period is waived pursuant to subdivision (2) of subsection (c) of this section, such board determines that an expungement is warranted at the time such pupil completes the board-specified program and meets any other conditions required by such board pursuant to subdivision (2) of subsection (c) of this section, or (B) such pupil has demonstrated to such board that the conduct and behavior of such pupil in the years following such expulsion warrants an expungement. A local or regional board of education, in determining whether to expunge such notice under subparagraph (B) of this subdivision, may receive and consider evidence of any subsequent disciplinary problems that have led to removal from a classroom, suspension or expulsion of such pupil.