The Chris Dawson case was back in a Sydney court today, with the 70-year-old’s lawyers telling Downing Centre Local Court that some key documents maybe have been destroyed by The Teacher’s Pet host and researcher, News Corp journalist Hedley Thomas.

The smash-hit podcast brought the story of missing Northern Beaches mother-of-two Lynette Dawson to national and even global attention after it shot to the top of podcast charts around the world.

But according to 9News, Chris Dawson’s lawyers claim that Thomas “may have shredded or not supplied material which had the potential to send someone to jail”. According to the report, the legal team of the Chris Dawson are “working to recover all interviews conducted by Thomas through his Melbourne lawyers”.

Lyn Dawson vanished in 1982, with her husband Chris — a schoolteacher who was having an affair with a student named Joanne Curtis at the time — claiming to have no connection to her disappearance.

However, the Queensland resident was arrested in the Gold Coast last December and extradited to NSW, where he was charged with the murder of his wife on December 6.

Chris Dawson is expected to return to court on June 20.

Image: AAP Photos / Dean Lewins