← Back to Stories

Victorian Labor government announces royal commission into Big Build corruption scandal

By Updated 14 September 20265 articles from 3 independent sources

Consensus Summary

Victorian Premier Ben Carroll has launched a royal commission into corruption allegations surrounding the state’s Big Build infrastructure program, marking a sharp departure from his predecessor Jacinta Allan’s refusal to establish such an inquiry. The commission, announced as Carroll’s first act after taking office on Tuesday, will scrutinise the $109 billion program—funded since 2015 for over 180 projects—amid claims of organised crime infiltration, union corruption, and cost blowouts exceeding 30% on major contracts. The move follows years of public pressure, with reports linking bikie gangs and CFMEU officials to criminal activity on government worksites, including the Suburban Rail Loop, which Carroll described as the state’s most expensive infrastructure project.

The scandal traces back to Allan’s tenure, during which she repeatedly dismissed calls for a royal commission, instead arguing that police investigations were sufficient. However, internal party frustration over her stance contributed to her downfall, with Carroll’s swift announcement positioning the inquiry as a cornerstone of his leadership. The opposition, led by Jess Wilson, has criticised the process, warning that Labor’s proposed terms of reference may shield party figures from scrutiny. Wilson’s proposed witness list includes Allan, former Premier Daniel Andrews, and other senior officials, while Carroll has dismissed her suggestions as a 'stunt' and vowed to finalise the commission’s scope independently.

Key figures in the debate have emphasised the urgency of the inquiry. Integrity expert Geoffrey Watson SC, whose report detailed systemic corruption in the CFMEU, welcomed the royal commission as a necessary step to restore public trust. Former IBAC commissioner Robert Redlich echoed this, calling the scandal 'unprecedented' and warning that the lost funds—estimated by ABC at up to $15 billion—could have been redirected to health or education. Carroll has pledged to give the commission 'exhaustive' terms of reference, though details remain scant, leaving critics wary of a narrowly focused probe. Meanwhile, the opposition’s insistence on broader terms, including an examination of project procurement systems, reflects deeper concerns about institutional failures beyond union misconduct.

Divergences in reporting highlight the political and factual complexities of the scandal. The Guardian and ABC both cite cost overruns and criminal activity, but ABC’s focus on a $15 billion loss contrasts with the Guardian’s emphasis on percentage-based premiums. TheAge provides additional context, such as Carroll’s admission of a $2.4 billion school funding cut and his criticism of the Suburban Rail Loop’s secretive development under Andrews. These details underscore the broader economic and governance challenges facing the state, including tax hikes introduced in 2023 that Carroll has pledged to review. While the royal commission’s hearings are expected to begin before the November election, its effectiveness hinges on the terms of reference and whether it can compel testimony from former leaders like Allan and Andrews.

As the inquiry takes shape, the political fallout continues. Carroll’s promise to bolster IBAC with follow-the-money powers and appoint a special prosecutor signals a commitment to transparency, though skepticism persists about Labor’s motives. The opposition’s refusal to support terms of reference drafted solely by the government risks prolonging the debate, while internal party wounds—exacerbated by Allan’s abrupt resignation—remain raw. With the election looming, the royal commission’s findings could prove pivotal in determining Labor’s fate, though the process itself remains a work in progress, with critical decisions still pending.

✓ Verified by 2+ sources

Key details reported by multiple sources:

  • The Big Build infrastructure program has allocated about $109bn in public funds since 2015 for over 180 projects, including Metro Tunnel, level crossing removals, and Suburban Rail Loop.
  • A royal commission into the Victorian construction sector was announced as the first act by new Premier Ben Carroll after taking office on Tuesday.
  • The royal commission will investigate corruption allegations in the Big Build, including links to organised crime and union corruption adding up to 30% premiums to project budgets.
  • Former Premier Jacinta Allan resisted calls for a royal commission until her resignation, citing police investigations as sufficient.
  • The Suburban Rail Loop is described as the most expensive infrastructure project in Victoria’s history.
  • The royal commission’s terms of reference are expected to be finalised this week, with Carroll stating they will be 'exhaustive'.
  • A special prosecutor will be appointed to work alongside the royal commission to secure criminal convictions.
  • The Independent Broad-based Anti-corruption Commission (IBAC) will be bolstered with follow-the-money powers.
  • The opposition has proposed calling former Premiers Daniel Andrews and Jacinta Allan as witnesses, along with other key figures.
  • The state election is scheduled for November, with the royal commission expected to hold hearings before then.

Points of Difference

Details reported by only one source:

The Guardian
  • The Big Build’s cost blowouts were attributed by Allan to inflation, supply chain disruptions, and rising labour costs.
  • A report by Geoffrey Watson SC found systemic corruption involving the CFMEU and outlaw motorcycle gangs, with allegations that the government 'knew and had a duty to know' about wrongdoing.
  • William Partlett, an integrity expert, said the royal commission’s terms of reference must be 'as broad as they can be' to include private organisations, unions, and government officials.
  • Allan acknowledged criminality in the projects but argued police should investigate allegations.
The Age
  • Carroll admitted a $2.4 billion funding cut to public schools, delayed by three years, was a mistake and part of a bitter wage dispute with teachers.
  • Tax increases announced in 2023, including payroll and land tax hikes, are set to remain until 2033, with Carroll pledging to make Victoria more competitive with NSW.
  • The Suburban Rail Loop’s development was criticised for being 'developed in secret' under Daniel Andrews ahead of the 2018 election.
  • Carroll revealed he first advocated for a royal commission in a caucus meeting last Tuesday, though he had privately discussed it earlier.
  • The opposition’s proposed witness list includes a 20-person shortlist, with Carroll dismissing it as a 'stunt'.
ABC News
  • The Big Build is described as a 'multi-decade, $100 billion' project, with estimates suggesting up to $15 billion lost due to criminal activity.
  • Geoffrey Watson SC called the enterprise bargaining system 'radically wrong,' stating it concentrated power and made it 'susceptible to external corruption'.
  • Robert Redlich, former IBAC commissioner, said the scandal is 'unprecedented' and demands a royal commission, warning of 'huge public wastage' diverting funds from health and education.
  • Carroll said he would be 'happy' to appear before the royal commission if required but rejected the opposition’s proposed terms as a 'stunt'.
  • The opposition’s terms of reference aim to extend beyond the CFMEU to examine the broader system of project selection, procurement, and funding.

Where the reporting differs

Details that conflict, or appear in only some outlets:

  • The Guardian states the Big Build’s total funding is $109bn, while ABC reports it as $100 billion.
  • The Guardian and ABC mention cost blowouts due to criminal activity adding up to 30%, but ABC also cites estimates of up to $15 billion lost, while the Guardian does not specify a dollar figure.
  • TheAge reports Carroll first advocated for a royal commission in a caucus meeting last Tuesday, while the Guardian implies he had been privately pushing for it earlier but did not publicly oppose Allan.
  • The Guardian and ABC describe the royal commission as a response to sustained pressure, but TheAge suggests Carroll’s push was more recent and tied to internal party dynamics.
  • TheAge states the payroll tax exemption for non-government schools was removed in 2023, while ABC does not mention this specific detail.

Source Articles

GUARDIAN

Royal commission into Victorian construction sector could boost Labor’s chances at state election, expert says

Commission promised by new premier would be an ‘important signal’ for voters that the government was acting on alleged corruption Get our breaking news email , free app or daily news podcast Victorian voters heading to the polls will probably get a taste of the evidence heard by a royal commission – including how taxpayer funds were used on Big Build projects – but it could actually help Labor’s standing, an integrity expert says. William Partlett, an associate professor of law and a fellow at t

THEAGE

Carroll declares integrity a non-negotiable – and defends his own

In a revealing interview, Ben Carroll talks about a $2.4 billion cut to school funding, the problem with the Suburban Rail Loop and his relationship with Jacinta Allan.

ABC

Ben Carroll calls a royal commission, but critics await details

The new Victorian premier has promised to leave "no stone unturned" in the inquiry into the state's construction sector, but his political opponents say the royal commission will be a sham.

ABC

Victorian premier 'happy' to appear before Big Build royal commission

Victoria's new premier Ben Carroll says he would give evidence before a royal commission into construction sector corruption if required, but described the opposition's proposed terms of reference for the inquiry as a 'stunt'.

THEAGE

The one thing Jacinta Allan left out of her farewell speech is Carroll’s first priority

As she ran through her government’s achievements, Allan sidestepped the issue that ultimately brought her down.

More Politics stories

Latest cross-verified stories

Browse all stories from July 2026 in the archive.