Speculation has arisen over whether Tukituki MP Craig Foss is working to provide Hastings with its first charter school.
Labour's Tukituki candidate, Anna Lorck, said she was seeking an assurance from Mr Foss that he and his Government were not "working behind the scenes to create a charter school".
"The public have a right to know what's going on and how their taxpayer money is being spent in Tukituki," she said.
Ms Lorck said, given Mr Foss' "performance" over Havelock North's promised primary school, he had already proven he was against putting "the right school in the right place at the right time".
"Charter schools are a wasteful and costly experiment. They get four times more funding per student than a public school," she said.