Mr Wright-Neville has told Radio 3AW Adam Brookman could have valuable information about the terror group's operations with encyclopedia of knowledge about how it's operating in this part of the world.
Mr Brookman, who is expected to fly into Sydney today escorted by Australian Federal Police officers, says he went to the war zone for humanitarian work in 2014, but was forced to join IS when he was injured in a hospital bombing and taken to IS-controlled territory.
The father-of-five, who handed himself into Australian Federal Police in Turkey, could face serious charges under anti-terror laws if he's found to have travelled to declared parts of Syria and Iran without a valid reason.
Australian man Adam Brookman said he was forced to join the militant group after travelling to Syria to work as a nurse last year.
Mr Brookman had told Fairfax Media in May that he had been forced to join the group almost one year ago, after being injured and taken to a hospital in militant-controlled country.
He said he fled the group in December and had been hiding out in Turkey, where he turned himself into Australian authorities.
However, authorities reportedly remain sceptical about his claims.
Under Australia's anti-terror laws, anyone caught in a declared area must prove they were not fighting with IS.
Speaking on the case in May, Prime Minister Tony Abbott said that he was pleased Australians were becoming disillusioned with the "death cult" and wanted to come home.
"But it's a serious crime under Australian law to fight with a terrorist organisation,” he said.
“The last thing we want is people who have been radicalised and brutalised by an evil death cult roaming our streets."
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