Local councils now have extensive powers to deal with local nuisances and litter under the Local Nuisance and Litter Control Act 2016 (SA). This includes powers to deal with unauthorised bill posting (previously dealt with as a criminal offence under the Summary Offences Act 1953 (SA)).
For further information about the extent of the powers and when they apply see the following articles
The Local Government Association has a series of factsheets available at https://www.lga.sa.gov.au/page.aspx?u=6964.
The content of the Law Handbook is made available as a public service for information purposes only and should not be relied upon as a substitute for legal advice. See Disclaimer for details. For free and confidential legal advice in South Australia call 1300 366 424.