MasterCraft Series – The Unseen Impact of Fraud: we all have the power to protect what matters

Charlotte Davidson, Interim Chief Executive Officer, IDCARE

Charlotte has over 20 years experience across the Australian and NSW governments, including 12 years in cyber security and cybercrime intelligence.

She was a founding member and executive with the central NSW government cyber function, Cyber Security NSW, leading the state’s cyber security strategy and policy. She was Manager of Cybercrime Intelligence at the Australian Criminal Intelligence Commission.

Charlotte was awarded a Churchill Fellowship in 2020 to undertake international research on cyber security awareness. She completed an Executive Master of Public Administration in 2022.

Charlotte is a Certified Information Security Manager (CISM), is certified in Governance, Risk and Compliance (CGRC), and has qualifications in accounting, leadership and community development.

Nicholas Shizas PSM, Deputy Commissioner and Chief General Counsel, Australian Taxation Office 

Nicholas Shizas, PSM is Deputy Commissioner and Chief General Counsel at the Australian Taxation Office (ATO), based in Sydney. With over 18 years’ experience as a lawyer, Nicholas has held senior leadership roles in the ATO’s taxation litigation practice and is recognised for his expertise in complex public law and dispute resolution.

In his current role, Nicholas is responsible for the ATO’s general law risks and provides strategic legal advice on a wide range of significant issues. Nicholas is also accountable for the ATO’s Internal Audit and Integrity functions, positioning them as critical enablers of organisational trust, transparency, and continuous improvement. He has a strong focus on strengthening assurance frameworks, governance, and integrity across the enterprise.

As the ATO’s Integrity and Privacy Champion, Nicholas has driven initiatives to embed ethical leadership, uplift integrity systems, and enhance organisational capability to manage sensitive and high-risk issues. His work supports a culture of accountability and reinforces public confidence in the administration of the tax system.
Nicholas was awarded the Public Service Medal (PSM) for outstanding service to public administration, particularly in advancing legal excellence, integrity, and governance. He remains a strong advocate for collaboration and capability uplift across the internal audit, legal, and broader public assurance communities.

Sean Worth, First Assistant Secretary, Integrity Group, National Indigenous Australians Agency

Sean Worth leads the Integrity Group within the National Indigenous Australians Agency, where he is responsible for strengthening the Agency's fraud and corruption posture and overseeing its integrity response capabilities.

With a career spanning government, consulting, not-for-profit and private sector organisations, Sean brings extensive leadership experience in governance, risk, program management and financial management. Before joining the NIAA, he advised Australian and UK government clients through senior roles in both Big Four and second-tier consulting firms.

Earlier in his career, Sean held executive leadership positions across a diverse range of industries, including health, legal professional services, and hospitality and gaming.
Sean is a Fellow of Chartered Accountants Australia and New Zealand and a Graduate of the Australian Institute of Company Directors.

Away from work, Sean is an enthusiastic dragon boater and collector of vinyl records.
Stef is admitted as a Legal Practitioner in the ACT and is a Graduate of the Australian Institute of Company Directors (GAICD). Stef holds a Bachelor of Laws and Commerce, a Master of Laws from the Australian National University, and a Graduate Diploma of Fraud and Financial Crime from Charles Sturt University.

Peter Timson, General Manager, Fraud Control and Investigation Division, Services Australia

Peter Timson is the General Manager of Fraud Control and Investigations Division, within the Payments and Integrity Group, Services Australia. In this role Peter leads the Division’s function to prevent, detect and disrupt serious threats that could harm the agency, its programs and customers as well as internal corruption issues. He works to strengthen the management of a pro integrity culture ensuring Fraud Prevention, Intelligence and Investigation capabilities operate across the agency and engage effectively with other government and commercial agencies.

Prior to this Peter spent three years as the First Assistant Secretary of the Compliance and Enforcement Division, within the Department of Agriculture, Fisheries and Forestry. This included Audit, Assurance and Investigations across imported and exported goods by providing effective compliance approaches in line with the department's regulatory responsibilities.

From 2018 to 2021 Peter was at the Department of Home Affairs performing a range of roles including the Assistant Commissioner Enforcement Command in the Australian Border Force. Peter also managed roles for Staff Health and Wellbeing with the Department of Home Affairs where he was responsible for the Portfolio and Department’s response to the COVID-19 vaccination rollout.

Peter was with the Australian Federal Police for 28 years, performing a range of leadership roles in Darwin, Sydney, and Canberra as well as overseas deployments to Bougainville and three years as Mission Commander to Samoa.  

Peter has over thirty-six years of compliance and enforcement experience, inclusive of an Honours Degree in International Relations, Master of Strategic Studies, and a Graduate Certificate in Executive Leadership. Peter is a 2014 graduate of the Australian Defence Force Centre for Defence and Strategic Studies.

Peter has been a WILES mentor for seven years and whilst in Samoa, with the support of his staff, undertook transformational changes for Women and LGTBQI+ staff in the Police Service.

Married with two children, Peter spends most weekends involved in reviewing the newest restaurant in Canberra. Peter grew up in Bondi, before it became famous or expensive, and he is still searching for the perfect ‘shot’ as a street photographer and where the next motorbike ride will take him. 

Sarah Chidgey PSM,  Deputy Secretary of the Integrity and Security Group, Attorney-General’s Department

Sarah has held a range of senior executive roles across the department, leading work across integrity, national security, criminal justice, cyber and infrastructure security, and strategy and delivery. Her previous roles include Deputy Secretary of the Integrity and International Group and the National Security and Criminal Justice Group and leading the National Anti-Corruption Commission Taskforce. She has also served as Senior Adviser on Immigration and Emergency Management in the Office of the Prime Minister and National Security Adviser in the Office of the Attorney-General.

She was awarded the Public Service Medal (PSM) in 2024 for outstanding public service through policy development and law reform in integrity frameworks, criminal justice, and national security. Sarah holds honours degrees in Arts and Law from the Australian National University.Katherine Jones PSM is the Secretary of the Attorney-General’s Department – a role she was appointed to in August 2021. Prior to this, Katherine was Associate Secretary of the Department of Defence (from June 2020 to July 2021), Deputy Secretary in the Department of Finance (from October 2017 to May 2020), and Deputy Secretary in the Attorney-General’s Department (from 2014 to 2017).