A jury is set to be picked in the highly anticipated Supreme Court murder trial of former Jetstar pilot Greg Lynn, who is accused of killing campers Russell Hill and Carol Clay in Victoria's High Country.
Mr Lynn, 57, is pleading not guilty to two murder charges.
Mr Hill, 74, and Ms Clay, 73, were reported missing in March 2020 after going on a camping trip in the Wonnangatta Valley, about a five-hour drive east of Melbourne.
The pair's disappearance sparked a major police search and investigation.
Mr Lynn was arrested and charged by police in November 2021.
Thursday's court proceedings are expected to involve a jury of 12 and up to three reserves being selected from a large pool of people who have been called up for jury duty.
Justice Michael Croucher is likely to explain to the panel how the trial will be run and outline their responsibilities.
The jury will then hear evidence in the case, which could go for several weeks, before retiring to deliver verdicts.
The trial will begin with prosecutors and Mr Lynn's legal team delivering opening addresses and summarising their arguments and upcoming evidence.
Witnesses will then be called to give testimony and to explain pieces of evidence. They can be questioned by the prosecution and defence legal teams.
After the jury has heard all the evidence, both sides will make closing arguments to the jury.
A judge typically provides further instructions to the jury and explains any relevant points of law, before sending the panel off to deliberate and deliver their verdict.
The prosecution team is led by Daniel Porceddu, while barrister Dermot Dann KC is spearheading Mr Lynn's defence.