If, before the expiration of five days from the date of the death or of the finding of the dead body of any person, a qualified informant of that person’s death sends to the registrar a written notice of the occurrence of the death or of the finding of the body accompanied by a notice given under subsection (2) of section twenty–two of this Act of the signing of a certificate of the cause of death, the information of the particulars required to be registered concerning the death need not be given before the expiration of the said five days, but shall, notwithstanding the notice, be given before the expiration of fourteen days from the date aforesaid by the person giving the notice or by some other qualified informant.