(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. (3) Unless an emergency exists, no pupil shall be expelled without a formal hearing held pursuant to sections 4-176e to 4-180a, inclusive, and section 4-181a, provided whenever such pupil is a minor, the notice required by section 4-177 and section 4-180 shall also be given to the parents or guardian of the pupil at least five business days before such hearing. If an emergency exists, such hearing shall be held as soon after the expulsion as possible. The notice shall include information concerning the parent's or guardian's and the pupil's legal rights and concerning legal services provided free of charge or at a reduced rate that are available locally and how to access such services. An attorney or other advocate may represent any pupil subject to expulsion proceedings. The parent or guardian of the pupil shall have the right to have the expulsion hearing postponed for up to one week to allow time to obtain representation, except that if an emergency exists, such hearing shall be held as soon after the expulsion as possible.

(b) For purposes of conducting expulsion hearings as required by subsection (a) of this section, any local or regional board of education or any two or more of such boards in cooperation may establish an impartial hearing board of one or more persons. No member of any such board or boards shall be a member of the hearing board. The hearing board shall have the authority to conduct the expulsion hearing and render a final decision in accordance with the provisions of sections 4-176e to 4-180a, inclusive, and section 4-181a.