Police investigating an incident in which an elderly Mosgiel couple in a campervan were terrorised at the Warrington Domain last weekend say those who know what happened that night are keeping their mouths shut.
Six carloads of young people attacked the campervan about 1.15am on Saturday.
The couple, believed to be in their 70s, were asleep inside.
Several windows were broken, panels dented and doors buckled and twisted.
A can and a bottle were thrown into the van, where the frightened woman was in her nightgown covered in glass while the man tried to drive the van away.
Dunedin police were yesterday still trying to work out how many people were involved in the attack.
But that was proving difficult when those they had already spoken to could provide no information, Constable Allen Wilson said.
"There are so many people involved and we are working through them one by one. What we really need is someone to come forward and take some responsibility.
"Until they do [come forward] we're just going to do it the hard way."
The inquiries team had already interviewed several people they believed might have been involved and would continue interviewing others next week.
Const Wilson was in touch with the couple involved and they were still getting over the event, which had left them traumatised, he said.
