Also see DNA Tests.
Legal adoption began in Victoria in 1928. Before this, informal arrangements took place where children were put up for adoption through the churches and sometimes through the courts. In the case of adopted children, you won't be able to find a birth certificate with the adoptive parents' names on it before 1928.
The Public Record Office Victoria may have records about adopted children before 1928. They may have records if the child has been made a ward of the state. See Orphanage, Industrial School and Reformatory Records. They may also have records if a court ordered a child to be removed from its parents. This occurred in the local Court of Petty Sessions before 1906. After 1906 it occurred in the local Children's Court. See Court Records. It should be noted that some of these records are closed under Section 9 and as they relate to children, they will not be released for 99 years after the creation of the records. An application under Freedom of Information can be made.
Legal adoption began in Victoria in 1928. Adoptees' birth certificates may be obtained using the Births Deaths Marriages Victoria website. For these records see Birth Registration Records.
Records relating to adoption may be obtained using the Department of Justice and Community Safety website; these are subject to certain access restrictions which are detailed on the website.
Other records relating to adoption can be obtained using the Public Record Office Victoria website. These records are closed under Section 9 and as they relate to children, they will not be released for 99 years after the creation of the records. An application under Freedom of Information may be made.