Incorrect! It's not a crime to vote informally. It is a crime to try and induce others to vote informally. The reasoning is that such advocacy is a form of d

Incorrect! It's not a crime to vote informally. It is a crime to try and induce others to vote informally. The reasoning is that such advocacy is a form of disenfranchisement, as it opens the door to deception, causing others to lose the effectiveness of their vote. Langer was free to put whatever he wanted on his own ballot paper, but not free to tell others to vote informally. The real controversy with the Langer case was that his recommended way of voting (using repeated numbers) was actually a valid way of voting at the time. The law was later changed to make such votes informal. There is no physical way for anyone to know what you put on your ballot paper in an Australian election. You fill it out, fold it and put it in the box with thousands of others. The restrictions are that you must take the ballot paper and it must not leave the room. Edit: A quick search gives a result from the parliamentary library. To quote: "Of course, voters may deliberately choose to cast an informal vote." https://www.aph.gov.au/About_Parliament/Parliamentary_Departments/Parliamentary_Library/FlagPost/2011/July/Informal_votes__if_they_dont_scrub_up_should_we_let_them_into_the_election_ball https://www.aph.gov.au/About_Parliament/Parliamentary_Depart...