(1) In this regulation (a) a reference to the unintentional destruction of a narcotic substance includes a reference to the unintentional disposal of that substance; and(b) a reference to a narcotic substance includes a reference to a narcotic substance in a parenteral solution.(2) If a narcotic substance is lost in a medical institution, clause 1 of Schedule 6 has effect.(3) If a narcotic substance is spilt, broken or unintentionally destroyed in a medical institution, clause 2 of Schedule 6 has effect.