SAS medic turned army sergeant Dusty Miller who,with SAS psychologist Mark Mathieson,has launched Mounted Missions to try to help soldiers traumatised by their experiences.Credit:60 Minutes
Mr Chapman said it was routine for Australian soldiers to shoot the dogs of villagers,destroy their property and plant radios and guns on the bodies of dead Afghans to justify their false description as combatants.
One soldier was shown on helmet video spraying the body of an already dead suspected Taliban combatant with bullets and,a few days later,ordering an Afghan soldier to kill another man who had already been arrested and bound.
"I was thinking,OK,we're executing people now,"Mr Chapman said of that incident.
He also said that he had witnessed an incident involving a still-serving SAS soldier identified as"Soldier A,"who allegedly shot an unarmed man twice in the chest and once in the head. The Afghan man had thrown away his phone and had his hands up.
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"It was target practice for the soldier ... in my book that's murder,"Mr Chapman told the program.
Another patrol then came past and an assault dog was allowed to chew on the dead man's head,the handler saying,"Let him have a taste,"Mr Chapman alleged.
Mr Chapman also described an incident in the village of Sola,in which a father and his son were killed by a man known only as Soldier B. Afghan human rights activist Shahrzad Akbar said both men were unarmed and civilians,but an Australian defence investigation found both deaths were justified.
Mr Chapman said that SAS soldiers joked among themselves about"the size of the rug that they've swept everything under,"and that,"one day everything's going to come out and people were going to go to jail for murder".
Mr Chapman said:"I just want the truth to come out and people who did commit crimes,be held accountable."