try here, there is a pdf file for a model criminal code from the Attorney Generals Department.... look at chapter 4 (Jan 2001):-

http://law.gov.au/publications/Model...Code/index.htm

The computer crime section starts about page 99. I am not sure if this has been assented to in parliament and actually enacted at this time but its a start.

You may be able to cross reference with this site:-

http://www.efa.org.au/Issues/Security/

Many of the various State Criminal Codes have a section that relates specifically to Computer Crime .... a search on your State Criminal Code may also help.