Australia has strict quarantine laws and significant on-the-spot fines for violations. Every piece of luggage could be screened, and it is mandatory to declare certain goods that you may be carrying. If you fail to declare or dispose of any restricted items, or make a false declaration, in addition to on-the-spot fines, you could be prosecuted and fined more than AU$60,000 and risk 10 years in prison. All international mail is also screened. For more information about goods that are not allowed, please visit this website.
Some products may require treatment to make them safe. Items that are restricted because of the risk of pests and disease will be seized and destroyed by the Australian Quarantine and Inspection Service (AQIS). The Department of Home Affairs (DHA) could use quarantine detector dogs to check through baggage for food, plant material or animal products.