Carpenter said their investigation will take 10 -- 12 weeks to complete and its findings will be released to the public .
Western Australian Premier Alan Carpenter said this was unnecessary because the National Offshore Petroleum Safety Authority was investigating and it could compromise their inquiry .
Premier said their investigation will take 10 -- 12 weeks to complete and National Offshore Petroleum Safety Authority 's findings will be released to the public .
Western Australian Premier Alan Carpenter said this was unnecessary because the National Offshore Petroleum Safety Authority was investigating and it could compromise their inquiry .