Police are digging deep in their search for an accused double murderer after farewelling a fallen comrade in a heartfelt funeral.

Dezi Freeman remains on the run after allegedly shooting two officers during a deadly confrontation at Porepunkah, about 300km northeast of Melbourne, on August 26.

There have been no official sightings of Freeman and police believe he might be receiving assistance from people within his network.

Thousands of mourners attended Senior Constable Vadim de Waart-Hottart's funeral on Friday at the Victoria Police Academy.

The 34-year-old was remembered as a smiling protector with an enduring fascination with Batman.

The slain policeman's mother and father, Carolina de Waart and Alain Hottart, travelled from Belgium for the solemn service, while his brother Sacha

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