THE flooding of Grantham needed a royal commission as there had been a "cover-up" in the subsequent inquiries, independent MP Alex Douglas claimed in parliament on Tuesday.
The Gaven MP said the State Government was ignoring Grantham residents' stories and an investigation was needed.
"Queenslanders must know that at 4pm on the day of the flood the sun was shining," Dr Douglas said.
"Water from heavy rain to the west and north-west of Helidon rapidly filled Lockyer Creek but was blocked by a dam and bund wall at Wagner's quarry.
"The dam and bund wall burst.
"This smashed into Grantham two kilometres downstream from the quarry dam."
He said another investigation into what happened in Grantham was needed.
"Today I'm demanding a royal commission into all matters regarding what happened in Grantham before, during and after this so-called flood event," Dr Douglas said.
The MP said in a statement on his website that critical eye-witnesses were refused the right to give specific testimony, which would have clarified what caused the flood and why it caused so much damage.
"It is not unreasonable to say this appears to be a cover-up," Dr Douglas said.
The MP called for the investigation to result in charges being sent to the Department of Public Prosecutions.
"We need to delve deeply into discovering what went wrong in Grantham," Dr Douglas said.
"We must identify what and whom were at fault.
"It should clarify what steps have to be taken, including taking full evidence from witnesses to verify what has occurred.
"It should then detail a path for prosecutions for those who were responsible."
Lockyer MP Ian Rickuss was in parliament yesterday and did not return calls.
- APN NEWSDESK
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