An inquiry into Kathleen Folbigg's convictions for killing her four babies has reinforced and reconfirmed her guilt, a former chief judge has found.
Reginald Blanch QC, the former NSW District Court chief judge who presided over the inquiry, concluded he had no reasonable doubt as to the serial child killer's guilt in a report published on Monday night.
The 51-year-old mother was jailed in 2003 for at least 25 years for killing her four babies - Caleb, Patrick, Sarah and Laura - in the decade from 1989.
"It remains that the only conclusion reasonably open is that somebody intentionally caused harm to the children, and smothering was the obvious method," Mr Blanch's report said.
"The evidence pointed to no person other than Ms Folbigg."
Attorney-general says inquiry 'justifiable use of resources'
NSW Attorney-General Mark Speakman said his decision last year to recommend to then-Governor David Hurley that there be an inquiry into her conviction caused him "great distress".
"The deaths of four children is a tragedy, their killing is a deeper tragedy, and the suffering Craig Folbigg and his family have gone through over the last 20 or 30 years is just unimaginable and that weighed heavily on me in deciding whether or not to have this inquiry," he said.
Mr Speakman acknowledged the decision to hold an inquiry "further aggravated what already was an unimaginable tragedy" but insisted the result reinforced confidence in the justice system.
"This was a justifiable use of resources," he said.
He noted the evidence given by Folbigg at the inquiry was found to be a "pack of lies".
"(Mr Blanch) found that evidence was basically a pack of lies, a pack of obfuscation trying to disguise the real truth that she had killed her four children," he said.
Mr Speakman will recommend to the governor that no further action be taken.
Craig Folbigg's brother, John, in May 2019 described the inquiry as "most unnecessary and most definitely unwelcome".
"However we have endured it as ultimately it would, we feel, help to ensure that the justice that Caleb, Patrick, Sarah and Laura received in 2003 is upheld," he said.
Folbigg will now continue to serve her 30-year sentence and will be eligible for parole in 2028.
Folbigg lawyer 'disappointed'
Folbigg's lawyer Stuart Gray on Monday night said they were disappointed with the outcome but looked forward to NSW Governor Margaret Beazley's consideration of the transcript and report.
"Ultimately, it is a matter for the governor to dispose of Ms Folbigg's petition," he said in a statement.
"We remain hopeful that consideration will be given to the evidence of the various experts that appeared at the inquiry and those that submitted reports after it."
