Getting civil status certificates from Australia
Australian civil status certificates are issued by the competent "Registry of Births, Deaths and Marriages" of the respective state or territory:
|New South Wales
Getting civil status certificates from Germany
Germany does not have a central registry office. Civil status certificates are issued by the competent local registry office which registered the birth/ marriage etc. Usually every town or city has at least one registry office.
The following website (in German only) might help you finding the right registry office:
If the birth or marriage happened abroad and none of the parties involved was registered in Germany at the time, the civil status certificate would have been issued by the Registry Office 1 in Berlin:
Webseite Standesamt I (in German only)