Details of missing camper murderer Greg Lynn’s appeal revealed

Greg Lynn’s lawyers have taken aim at prosecutors, police and the jury’s decision as the grounds for his appeal against a murder conviction are revealed.

High country killer Greg Lynn suffered a “substantial miscarriage of justice” his lawyers have claimed ahead of his appeal.

The former airline pilot, 58, was found guilty of the murder of Carol Clay, 73, who along with Russell Hill, 74, vanished during a camping trip to the Wonnangatta Valley in March 2020.

Lynn was acquitted of Mr Hill’s murder.

Lynn’s defence lawyer Dermot Dann KC says his client suffered a ‘substantial miscarriage of justice’. Picture: David Geraghty

In documents released by the Supreme Court, Lynn’s lawyers have outlined the five grounds they will rely on in his upcoming appeal against his conviction and sentence.

In relation to his conviction, they claim Lynn suffered a “substantial miscarriage of justice” over several statements made by Crown prosecutor Daniel Porceddu in his closing address which were never put to Lynn during cross-examination.

During the trial, Justice Michael Croucher told the jury the prosecution breached the “basic rule of fairness” by failing to put propositions to Lynn when he was in the witness box.

The second ground relates to the evidence of Victoria Police ballistics expert Paul Griffiths.

Lynn’s defence team argue Mr Griffiths’ evidence “involved a further serious departure from the rules that govern the fair conduct of criminal trials”.

Lynn is led in to the Supreme Court. Picture: David Geraghty

During the trial, defence barrister Dermot Dann KC accused Mr Griffiths of conducting a “botched exercise” related to trajectory testing of Lynn’s Barathrum 12-gauge shotgun.

Mr Griffiths also admitted falsely stating in a report that he used Lynn’s shotgun for his testing when he actually used a police firearm.

Lynn’s lawyers say the first and second grounds of appeal should be considered in combination and there was an “unacceptable risk that the jury travelled down an impermissible pathway” in arriving at its verdict.

The final ground claims the guilty verdict for Mrs Clay’s murder was “unsafe and unsatisfactory”.

Lynn, who was jailed for 32 years with a non-parole period of 24 years, is also appealing his sentence on the grounds it is “manifestly excessive”.

The Court of Appeal will ultimately decide whether Lynn’s conviction is upheld or overturned.

Lynn’s lawyers will argue their case at a hearing which will likely be held next year.

If his appeal is successful, Lynn could face a retrial over Mrs Clay’s murder.

But his lawyers have hinted they may seek a permanent stay — meaning he could be freed without facing another trial — due to extensive media reporting about his chequered past.

Lynn, who maintains his innocence, claims Mrs Clay and Mr Hill were accidentally killed in separate struggles over a shotgun and a knife.

He admitted destroying their campsite, hiding their bodies in remote bushland before later returning and burning what was left of their remains, claiming he did so because he feared he would be blamed for their deaths.