For years the Australian Bureau of Statistics has been able to link its data in secret without retaining names and addresses for four years -- and some staff have access to the full data of your name, address and census information before it is anonymised, Crikey can reveal.

The Australian Bureau of Statistics has come under fire this year for its new policy of keeping names and addresses for four years. But Crikey has learned that as with much of this process, the ABS has not been fully upfront with the public about how much access is given to the uncensored census forms, and how necessary it is to retain the names and addresses.