"An adoption order has a quite different standing to almost every other order made by a court. It provides the status of the adopted child and of the adoptive parents. The effect of an adoption order is to extinguish any parental responsibility of the natural parents. Once an adoption order has been made, the adoptive parents stand to one another and the child in precisely the same relationship as if they were his legitimate parents, and the child stands in the same relationship to them as to legitimate parents. Once an adoption order has been made the adopted child ceases to be the child of his previous parent and becomes the child for all purposes of the adopters as though he were their legitimate child."
"The act of adoption has always been regarded in this country as possessing a peculiar finality. This is partly because it affects the status of the person adopted, and indeed adoption modifies the most fundamental of human relationships, that of parent and child. It effects a change intended to be permanent and concerning three parties. The first of these are the natural parents of the adopted person, who by adoption divest themselves of all rights and responsibilities in relation to that person. The second party is the adoptive parents, who assume the rights and responsibilities of parents in relation to the adopted person. And the third party is the subject of the adoption, who ceases in law to be the child of his or her natural parents and becomes the child of the adoptive parents."
"An adoption order is not immune from any challenge. A party to the proceedings can appeal against the order in the usual way. The authorities show, I am sure correctly, that where there has been a failure of natural justice, and a party with a right to be heard on the application for the adoption order has not been notified of the hearing or has not for some other reason been heard, the court has jurisdiction to set aside the order and so make good the failure of natural justice. I would also have little hesitation in holding that the court could set aside an adoption order which was shown to have been obtained by fraud."
"This is a case in which the court has to go back to first principles. Adoption is a statutory process. The law relating to it is very clear. The scope for the exercise of judicial discretion is severely curtailed. Once orders for adoption have been lawfully and properly made, it is only in highly exceptional and very particular circumstances that the court will permit them to be set aside."
"[163] The question, therefore, is whether or not a substantial miscarriage of justice, assuming that this is what has occurred, is or can be sufficient to enable the adoption orders in the present case to be set aside."