"There will be people in our community who know who is responsible," he said. "It's the community which solves crimes and I urge people to contribute to the moral fibre of our district and come forward with information."
But, Mr Davis said, police want to hear facts, not innuendo or rumours.
"Dannevirke is a great wee place and there is only a handful of people stupid enough to do this sort of stuff," he said.
"We've also had the mindless pulling out of street signs and if people have got that much energy, they should go to the gym."
Outgoing Tararua District mayor Roly Ellis discovered the damage on Adelaide Rd early Saturday morning when taking his dog for a walk and told the Dannevirke News he was "disgusted" anyone could be so irresponsible.