Despite Australia having signed the Universal Declaration of Human Rights, not all of those rights are directly listed in Australian constitution or any other law. For example, there is nothing speaking of right to healthy lifestyle; there are a few notes about not doing anything with the goal of harming someone's health, either directly or with the goal of own revenue, but there is nothing that would otherwise support that right, so if someone breaks a law for the sake of their health they would still be guilty of an offense unless there is an exception. (For example, road rules acts of the states have a special note that certain rules may be ignored if there is a question of saving someone's life.)

Again, it appears that there is nothing in Australian legislation that defines voting as a right, other than the Constitution. It does not have a glossary. Technically one could argue that saying that someone can do something doesn't contradict a duty to do it. It becomes a linguistic question, or possibly a question of common law and looking at how such situations were resolved in Australian and other countries court cases before.

Gryllida23:14, 18 April 2013