Sovereign citizens and the far right pose a serious threat to Australia's social unity, the nation's leader warns after the funerals of two police officers whose accused killer remains on the run.

Detective Leading Senior Constable Neal Thompson, 59, and Senior Constable Vadim de Waart-Hottart, 34, died in Porepunkah, about 300km northeast of Melbourne, on August 26.

Freeman, 56, is connected to the sovereign citizen movement, which Prime Minister Anthony Albanese described as a "threat" to Australia along with far-right agitators.

"The social cohesion issue is something that causes me a great deal of distress," he told ABC Radio on Tuesday.

"The fact that some people think that the government isn't legitimate, the so-called sovereign citizens engage, therefore, in lawlessness because

See Full Page