Christopher Knaus

Christopher Knaus is a chief investigations correspondent at the Guardian who specialises in uncovering systemic failures in government, corporate and social institutions, with a particular focus on how political decisions affect vulnerable people. His work centres on long-running, document-based investigations, often built around whistleblowers and leaked material, rather than day-to-day political reporting. Before joining the Guardian in 2016, he spent six years reporting on crime, courts and politics at a local newspaper, an experience that informs his attention to legal risk, evidence and accountability.

Welfare policy and the robodebt scandal

Knaus is best known for breaking and then sustaining coverage of the robodebt scandal, exposing the flaws and injustices in an automated welfare debt recovery program that became a national controversy. In late 2016 he first reported on the scheme’s significant problems, including the government’s reliance on income averaging that was later found unlawful.

He drew heavily on internal whistleblowers and leaked documents, producing a series of exclusive stories that detailed how the system wrongly pursued hundreds of thousands of people for alleged debts.

As public tip-offs grew, he continued reporting on the scheme’s human impact, working with colleagues to document the despair it caused, the legal challenge that halted it, and the subsequent inquiry that linked the program to suicides. That body of work shows a reporter who returns repeatedly to the same policy apparatus, testing official claims against lived experience and internal evidence.

Detention, prisons and state accountability

A second strand of his work focuses on carceral systems, from immigration detention to prisons, and the way government contracts and policies translate into risks for detainees and staff. Knaus co-led an investigation that combed coronial records nationwide to build a database of deaths where hanging points had been left in prison cells despite repeated warnings, revealing at least 57 preventable deaths and a disproportionate impact on Indigenous prisoners. The series combined data analysis with interviews with grieving families and triggered responses from senior political figures, who described the findings as unacceptable and called for reform. He has also reported on catastrophic security failures involving a private US prison company running immigration detention centres, detailing escapes by high-risk detainees, staff stabbings, and official investigations that warned the contractor’s minimalist staffing model was endangering both workers and those in custody. Across these stories he treats detention policy as a political choice with measurable safety consequences, and he uses records, inspections and internal reports to test whether governments are meeting their duty of care.

Climate, mining and corporate power

Knaus extends his investigative approach into climate and resources coverage, particularly where corporate strategies intersect with political decisions and regulatory gaps.

His reporting on BHP has drawn on leaked internal documents and large caches of material, showing how a major miner has war-gamed delays to decarbonisation and the implications of those strategies for the pace of emissions cuts. In coverage of fuel tax breaks and other policy instruments, he highlights how government concessions can slow corporate decarbonisation and raise concerns among investors pushing for climate action.

His work treats company climate plans not as static pledges but as contested terrain shaped by tax policy, lobbying and internal scenario planning. He often explains these stories through the lens of power - examining who benefits from delayed climate action, what risks are shifted onto communities, and how political decisions entrench or challenge that dynamic.

Homelessness, social services and economic abuse

Another recurring focus is the failure of social services and welfare infrastructure to protect people at the margins.

Knaus has reported on the death of Bikram Lama, a homeless man whose strange and lonely death in public exposed a glaring gap in homelessness services, tracing how he came to the country, what supports were missing, and how he “died unseen”. That work sits alongside investigations into economic abuse linked to welfare payment systems, including a series on Centrepay that examined how governments allowed harmful practices to persist in schemes meant to support low-income households. Those investigations have been recognised with journalism awards for consumer affairs reporting, reflecting their focus on the financial structures that deepen hardship rather than alleviate it.

In these stories his reporting method mirrors his work on robodebt and prisons: he builds cases through records, affected individuals and expert scrutiny, then tests whether political rhetoric about fairness and safety matches the outcomes on the ground.

Approach to sources and investigative work

Across beats, Knaus works closely with confidential sources and whistleblowers, balancing legal risk with public interest. Professional biographies describe his role in developing relationships with sources, assessing sensitive information and reporting stories where there are significant legal and personal risks for those involved.

His investigations often require months of work, from building databases of coronial findings to analysing leaked corporate material, and he frequently returns to the same subjects over years to follow through on policy responses and reforms.

He appears regularly on the Guardian’s Full Story podcast and other programs to discuss his investigations, indicating a role that extends beyond filing stories to explaining complex systems failures to a broader audience. Taken together, his body of work marks him as an investigations specialist whose political reporting is defined less by daily commentary and more by sustained, evidence-heavy scrutiny of how policies, contracts and corporate decisions affect people with the least power to respond.