You may well be right about WA. I'd never heard that. But I reckon the first CRL comps must have been early 2000s.Cool. Don’t mind being wrong 2012/13 was when I first heard of it being played outside of the affiliated states and obviously fed incorrect information.
Here's a bit of trivia. The first leaguetag comps in NSW began in Groups 9 and 20 when they decided to combat the VFL and its tie-up with netball. VFL clubs down there had netball teams for the women as a way of getting women into their clubs. So the RL groups decided to go one better and start women's non-contact RL so they would be even more included and that's how leaguetag started there. It was a success and now every group has its own comp.