Del. Code tit. 13 § 924
Except as provided in subchapter III of this chapter, all court records of any adoption shall be treated as strictly confidential and shall be kept by the Clerk of the Court in a sealed container which shall be opened only upon the order of the Judge of Family Court concerned. Nothing in this section shall be construed in such a way as to restrict the Department or licensed agency from releasing nonidentifying information in its records to any of the parties to the adoption. Except as otherwise provided in § 929 and subchapter III of this title, identifying information, such as names and addresses, shall not be released except by order of the Court or with the consent of all the parties involved when it is deemed by the agency to be in the adoptee's best interest, except in cases where the adopted individual's health or the health of any blood relative of the adopted individual is concerned and the adoption agency has refused to release the health information to the individual, the Court may, through petition by the adopted individual, permit the party to inspect only that part of the adoption agency or Court record containing medical information for health reasons. The Court shall order open to inspection by the individual the part of the record containing the needed medical information if the Court finds that any medical information in the Court or adoption agency record of the individual's adoption is needed for the health of the individual or of any blood relative of the individual. This section shall apply to information as to the identification and location of any biological sibling of the individual if the individual's health or the health of any blood relative of the individual depends on the sibling's participation in any medical treatment. If Family Court receives a report stating that a birth parent, another offspring of the birth parent or the adoptee has a genetically transmitted disorder or a family pattern of a disease, Family Court shall instruct the agency that was involved with the adoption or the termination of parental rights to conduct a diligent search for the adult adoptee, adoptive parents of a minor adoptee or birth parent or parents to inform them of the report.
13 Del. C. § 924