The investment portfolios of ACC and the New Zealand Superannuation Fund continued to prop up the government's books as corporate and personal tax revenues dwindled, says Treasury.

Opposition ACC spokesman David Parker is accusing the Government of misrepresenting ACC's position to soften up the public for major cuts to ACC entitlements.

ACC is still pushing for a large increase in levies, despite a storm of protest over the size of the hikes proposed.

Around 90 per cent of the increases in next year's ACC levies arise from a more conservative approach to ensuring the scheme is adequately funded.

The partner of the Napier siege gunman received nearly $10,000 in ACC compensation after he committed suicide.

Motorcycle protesters are threatening to block shopping mall car parks unless the Government abandons proposed accident compensation levy rises.

"I've broken laws heaps of times ... I do it every day" National MP Tau Henare claimed today, during an argument over whether ACC should pay compensation to criminals.

Nick Smith promises to review figures which could see motorcyclists hit with huge ACC levy increases.

An estimated 12,500 motorcyclists have joined today's "bikoi" protesting ACC levy rises, according to organisers.

A new program to help reduce ACC costs will make it more difficult for some people to get medical scans.

Investment returns from the Cullen Fund and ACC have rescued the Crown's bottom line in the first three months of the fiscal year.

Recoveries in the investment performance of the ACC and New Zealand Superannuation Fund portfolios have helped offset a dramatic fall in the tax take over the past three months, says Treasury.

A second toddler has been driven over in the space of 24 hours and is in Tauranga Hospital with serious head injuries.

Police have named a toddler who died after a vehicle driven by her father hit her on the driveway of their Waikato home.