The National Party wants more investigation into the 23-day protest at Parliament.
The Independent Police Conduct Authority announced last week there will be an investigation, but the Government has no plans to do one of its own.
National Party Justice Spokesperson Paul Goldsmith told Andrew Dickens the IPCA is focused on the behaviour and handling of Police.
“But it’s a much wider issue, of course. We want to know what the Speaker got up to, what we’ve learnt in terms of Parliament security, how it all came about.”