A retired Australian Defence Force general says the military's experience in operating in "jungle country" could prove helpful in the ongoing bushland search for accused killer Dezi Freeman.

The search for the 56-year-old man who allegedly shot dead two police officers at his property in Porepunkah, Victoria , last Tuesday, has entered its 10th day.

Defence Minister Richard Marles confirmed earlier this week that military assets, including a planning specialist and aerial surveillance, would join the police manhunt.

Former Major General Mick Ryan told Today such situations happened "reasonably frequently".

"Normally the Australian Defence Force comes in when there's disaster relief, whether it's the aftermath of floods, fires - and these kind of events, it's less frequent to co

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