TWEED MP Geoff Provest has defended his decision to support the development of a police headquarters in Kingscliff saying he "wouldn't tell a doctor where to put his operating table."

The comments come days after a Tweed business and residents group took the issue to the NSW Land and Environment Court, demanding answers from seven people in support of the development, including Mr Provest.

"The operational police say they want it there so it's a hard argument," Mr Provest said.

"I'm not a police officer and I've never professed to be but professional officers are saying they want it there and they want it now.

"It's not a platinum solution but it's better than nothing."

The development, approved for Marine Pde, Kingscliff, by the Joint Regional Planning Panel has the Tweed Business and Residents Focus Group and the Tweed Shire Council furious.

The group argues the site is too small for a two-storey police command centre servicing the entire Tweed Byron Local Area Command.

They say it's too far away from the Pacific Hwy and will destroy the Kingscliff foreshore and lifestyle for residents and tourists.

The council maintains there's better sites available and have begun investigating a location on Sexton Hill, Banora Point, after abandoning alternate sites in Cudgen, Chinderah and Cudgera last year.

But Mr Provest is concerned the $15 million in funding won't be available forever.

"We renewed $15 million in funding in the last budget and we've already spent $600,000 on planning studies without turning a sod of dirt," Mr Provest said.

"I always thought it would be getting the money that was the hard part but it's not, we've had this funding for years.

"There is a time line on funding and eventually if the money is not spent it is re-allocated, while this many not happen here, it is still a risk."

Mr Provest said he wasn't phased by the court action and welcomed the "open and transparent" process.

"It's going to delay it and the longer it takes the more it costs," Mr Provest said.

"But it's their right to do that and that's why we've got those processes in place."

The Tweed Business and Residents Focus Group has estimated the court action could take up to 12 months.