Courtesy of Debbie Gravenall:
This is for all your unbelieving family members who think you are a tin foil hat whatever, this is from a WA government website, have a look at both the link to the government document, and the one below that, which is the video that lead me to the website, if anyone is able to download the PDF file, please send it on to others.
PDF:
http://crown.land/docs/wa/authorisation-to-supply-or-administer-vaccine-poison.pdf
http://crown.land/videos/wa/australia-health-officials-authorization-to-administer-poison.mp4