Why is this game only legal across Australia one day a year?

Two-up is a coin toss betting game, with two people betting against each other on whether they will land on heads or tails. Classified as unregulated gambling, the game is illegal in most parts of Australia. But on 25 April people rush to the pub to play, when it’s permitted across the country for a few hours. The BBC’s Harry Sekulich explains why the exception is made, and what people for and against it have to say.

Video by Kellie Highet