This story produced by Chris Gillett. Originally posted on the 16th of November.

With massive infrastructure projects underway around the country there’s more concern than ever about whether taxpayers are getting value for money.

A police investigation is underway to determine why a federal department spent $30 million for a block of land valued at just $3 million.

Tonight a joint report by 7.30 and the Sydney Morning Herald can reveal another questionable land purchase, this time made by the NSW Government.

Investigative reporter Adele Ferguson returns to 7.30 with an expose that’s already prompted a NSW Auditor-General inquiry into the multi-million dollar deal.

Watch that story here.