The corruption watchdog in New South Wales has found former premier Gladys Berejiklian and ex-Liberal MP Daryl Maguire engaged in serious corrupt conduct when they were a couple. 

Also, could opioids be doing more harm than good when it comes to relieving back pain? Some new research is casting doubt on whether this super strong med is that effective. 

And, we speak to the Aussie firefighters who've been helping Canada through its worst wildfire season in modern history. 

Guests:

• Paul Farrell, ABC investigative journalist
• Dr Caitlin Jones, University of Sydney