I did not find anything about rank insignia, but found this about uniform colors./Luke
Australian Customs
Internal airport: Blue shirt, grey skirt/
trousers, navy blue jumper.
External / tarmac: yellow vest, navy blue
polo T-shirt, blue cargo trousers, blue cap.
Australian Federal Police (AFP)
Blue shirt, white shirt, navy jumper, navy
blue trousers.
Australian Quarantine and Inspection
Service (AQIS)
Maroon jumper, cream shirt, beige
trousers/ skirt.
Baggage handlers in green polo shirts and
beige pants. (Baggage handlers are employed by
AQIS to assist with the movement of
passengers' luggage.)
Source:
http://www.customs.gov.au/webdata/resou ... rports.pdf