Investigative journalist Hedley Thomas has rejected allegations he influenced potential witnesses in Christopher Michael Dawson's murder trial by discussing potential movies or miniseries about the case.
Returning to give evidence in the NSW Supreme Court on Tuesday, Thomas said talk of witnesses playing a role in an upcoming production was merely banter during interviews with them.
"When you held out those deals to them ... you appreciated that that would be attractive to them?" asked Dawson's barrister Pauline David.
"Possibly to some, but it might have been very unattractive to others who were introverted or didn't want to be involved," he said.
Thomas produced The Teacher's Pet podcast on the January 1982 disappearance of Lynette Dawson.
He told the court he had no roles to offer anyone, explaining that his interviews for the podcast occurred in the years before a deal had been struck with Blumhouse Television for a miniseries in September 2018.
Dawson, now 73, has been accused of murdering his wife and disposing of her body so he could have an unfettered relationship with his babysitter and former high school student, known as JC. He has pleaded not guilty.
Ms David suggested Thomas had corrupted and poisoned the recollections of potential witnesses by discussing his own negative perceptions of Dawson with them, before some had even given a statement to the police.
The Walkley award winning journalist denied these allegations.
"These were intelligent people with their own independent minds," he told Justice Ian Harrison.
The podcast was released in May 2018, a few weeks after a brief of evidence was sent to the Department of Public Prosecutions in April. Dawson was charged and arrested in December that year.
In recorded conversations with interviewees, Thomas was heard saying Dawson had been suspended from his high school because he had sex with school girls. Ms David referred to this as an unfounded rumour, while Thomas said it had not been published in the podcast itself.
Thomas was also heard saying that in the upcoming miniseries, script writers could use poetic licence to portray Dawson as someone who was cruel to animals in his youth.
This was merely a hypothetical suggestion plucked out of thin air about what could be portrayed in a later miniseries, he told the court.
The journalist said he had offered multiple chances for Dawson to come on the podcast for a completely unedited interview.
When these opportunities were rejected, Thomas talked to an anonymous Queensland District Court judge and Ivan Milat's former lawyer about any weaknesses in a murder case that could be brought against Dawson.
A statement from the judge was then given its own complete episode in the podcast, the court heard.
"You included it for balance?" Justice Harrison asked.
"Yes, Your Honour," Thomas replied.
Detective Senior Constable Daniel Poole, who is the current lead investigator into Mrs Dawson's disappearance, also gave evidence on Tuesday.
He said his team had followed up on alleged sightings of Mrs Dawson alive, including at a bridal shop before she disappeared, but said these leads did not go anywhere.
A claimed sighting by her brother-in-law Ross Hutcheon who said he had seen her across the road from Gladesville Hospital months after January 1982 was also a dead end, the court heard. Employment records from the local health district showed no one had worked there under that name, Det Poole said.
Other leads went nowhere as well, Det Poole said, including ground searches and excavations conducted at the Dawsons' family home in Bayview, Sydney. After five pieces of cardigan were found in the ground near the swimming pool, DNA analysis failed to show a link to either Chris or Lynette Dawson.
Det Poole and his team sniffed out blood in the Bayview home using a police dog, but this too was inconclusive.
Searches conducted of databases of unidentified human remains across Australia also failed to turn up anything.
Det Poole will return to give evidence on Wednesday.
Australian Associated Press
Sign up for our newsletter to stay up to date.