Penny Hulse said it was time New Zealanders discussed the decriminalisation of cannabis, much as they had had discussions on prostitution and same-sex marriage.
But a police national headquarters spokesman said there was no political will for decriminalisation and their stance on the issue was clear.
“Police do not support the decriminalisation of cannabis.”
Last week Prime Minister John Key told the Herald he did not support the decriminalisation or legalisation of drugs.
On Wednesday Ms Hulse told an Auckland Council committee drawing up a policy on legal highs that it made no sense to regulate synthetic cannabis without considering safer alternatives.