An SAS whistle blower has denied speaking out to media about alleged war crimes in Afghanistan as a move to "tarnish" the reputation of decorated veteran Ben Roberts-Smith.
The warrant officer class two, codenamed Person Seven, spent his fourth day in the witness box at the civil trial brought by Mr Roberts-Smith against three newspapers he says defamed him in reports of alleged war crimes and murders in Afghanistan between 2006 and 2012.
Person Seven was one of two anonymous sources who appeared on the Nine Network's 60 Minutes program in 2019 in breach of Australian Defence policy.
