VICTORIANS will be asked to dob in a firebug to prevent a repeat of the Black Saturday disasters.   

The Herald Sun reports that police will launch a new campaign to encourage people to report any suspicious activity or behaviour.

It comes after Black Saturday police investigations revealed many people harboured suspicions of others even before fires were lit.

Det Supt Paul Hollowood said the Extinguish Arson Campaign was timed to coincide with the worst of the February/March fire season.

People will be able to anonymously call Crime Stoppers on 1800 333 000 to enable them to thwart potential crime.

"We're asking people to report any information - no matter how insignificant they think it might be - to help stop arsonists in their tracks," Det Supt Hollowood said.

"Fires have an absolutely devastating effect - they destroy homes, decimate wildlife and in worst-case scenarios kill men, women and children."

The campaign is aimed particularly at high-risk fire zones, especially in the country.

Read more on the Herald Sun online.