A warning not to fall into the trap of lumping everything into the co-governance basket.

Former Attorney General, and ex-National Party Treaty Negotiation Minister, Chris Finlayson, has added his voice on the issue.

Act's David Seymour says a referendum on it, would be an election bottom line.

Finlayson says people need to understand what co-governance is.

He asks if what's being proposed in the health area is co-governance, or a health initiative to focus on particular problems.

LISTEN ABOVE