Leading No campaigner Jacinta Nampijinpa Price says the colonisation of Australia had a positive impact on Indigenous people – citing running water and readily available food – and has cast doubt on Opposition Leader Peter Dutton’s promise of a second referendum if the Voice campaign fails.

The Opposition Indigenous affairs spokeswoman told the National Press Club on Thursday more discussion was needed on plans for a vote on symbolic recognition and Mr Dutton’s stated policy to create local and regional bodies to advise government.