The devices are being rolled out in the Wodonga and Wangaratta regions, with 11,000 cameras to be in use across Victoria by 2020.

It follows a similar roll out in Albury last October.

Officers in NSW regularly use the recording devices.

Victorian Assistant Commissioner Russell Barrett said officers would be trained in their use.

"The introduction of body worn cameras is expected to deliver improved community safety, enhanced evidence gathering, increased police safety and accountability," he said.

"The initial pilot we conducted in April 2018 showed us that camera usage policies, infrastructure and training for police had worked well and police were comfortable using the technology within their first one or two shifts.

"Given the pleasing results of their function along with the overwhelmingly positive feedback from the community, we are in the process of rolling the cameras out to more officers."

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Police stations have needed modification to house the new technology.

Officers at the rank of sergeant and below will using the cameras, located near members' chests.

General duties and highway patrol members will use the devices.

Assistant Commissioner Barrett said the roll out would be finished by next year.

"We are pleased to be expanding the body worn cameras to more officers, with the aim to have 11,000 general duties police and Protective Services Officers equipped with one by 2020," he said.

In other police news, the cause of a fire at a Lavington unit is under investigation.

Firefighters were called to the McDonald Road unit block about 5.45pm on Saturday.

Fire and Rescue NSW Inspector Frank Finlay said the fire occurred in a ground level unit.

The incident damaged the home and caused 15 people to evacuate from nearby units.

"We had crews on scene fairly quickly," he said.

"Due to the damage to the bottom unit, the occupant was unable to return."

A burnt mattress could be seen at the front of the property.

The interior of the home appeared to have sustained smoke damage.

Inspector Finlay said it was important people had working smoke alarms, especially coming into winter.