Karen Ristevski's brother-in-law has been filmed walking in bushland at the Mount Macedon Regional Park where her body was found eight months after she disappeared.

In a new twist to the case, Vasko Ristevski was spotted in bushland about 60 kilometres from the Ristevski's family home in Avondale Heights while Channel Nine's A Current Affair team was filming a story this week ahead of the one-year anniversary of her disappearance on June 29.

Footage shows Ms Ristevski's brother-in-law appear from a behind a tree as he walks through the bush and heads back towards his truck parked just metres away from the site where the 47-year-old mother's body was found on February 20, buried between two giant logs.

The TV news crew were with former homicide detective Charlie Bezzina when they saw Vasko Ristevski, the brother of Ms Ristevski's husband Borce.