Here you go , link also at the bottom if you need further...

Here you go , link also at the bottom if you need further reading material

Overview

On 1 August 2010 ASIC took over responsibility for supervision of real-time trading on Australia's domestic licensed markets. This supplements its existing responsibility for enforcement of the laws against misconduct on Australia's financial markets and its supervision of Australian financial services licence holders.

https://www.asic.gov.au/asic/ASIC.NSF/byHeadline/Market%20supervision%20and%20surveillance