A Notary Public identifies himself/herself on documents by the use of their individual seal. These seals have historical origins and are regarded by most other countries as of great importance for establishing the authenticity of a document. The notary affixes their official seal or stamp on to documents immediately under, adjacent or as near as possible to their signatures.
While it was once usual for Australian notaries to use an embossed seal with a red wafer, some now use a red inked stamp that contains the notary's full name and the words "notary public". It is also common for the seal or stamp to include the notary's chosen logo or symbol.
These seals and signatures are officially recorded in a database maintained by the Department of Foreign Affairs and Trade. The Department is authorised to issue Apostille or Authentication Certificates certifying that the signatures, seals or stamps of Notaries Public on Australian public documents are genuine.
The signatures, seals or stemps of Notaries Public are also registered with State/Territory Supreme Courts and the local Notary Society if one exists and they are a member. In Tasmania Notaries Public are answerable to the Supreme Court.