Is a "smoking in cars" ban possible?
The Maori Party are calling for smoking in cars to be banned. Party co-leader Tariana Turia says such a ban would help New Zealand on its way to becoming smokefree by 2025.
"I've never supported smoking in cars. When I see people smoking around their children, basically trapped in a car with somebody who smokes, I can't help but wonder at whether the messages get through," said Mrs Turia.
The idea is also backed by the Greens.
Is such a ban enforceable?