Hadn't thought about the lunar cycle but you are right practically the same. I was initially more thinking about it being back to the level prior to the massive amount of rain. But your suggestion makes more sense. They will probably check if anything matches marks on body or if she had been thrown from bridge where the body would have landed at certain times. Maybe even being able to pinpoint time if they have apr time of deathYeah good point. I wondered if they were measuring things, since it seems a bit late to be taking any samples.
It is the same lunar phase so they would be matching:
http://tides.willyweather.com.au/qld/brisbane/brisbane-river--pinkenba.html