Adjunct Staff

John Walker


Adjunct Associate Professor
off campus


John Walker’s career began with developing mathematical models for space research, transportation analysis, and regional development. Research on the impacts of crime on patterns of regional development led to fifteen years with the Australian Institute of Criminology, followed by 25+ years as an independent crime trends analyst.

He developed Leontief-type methods of forecasting trends in crime to assist modelling future demand for criminal justice resources. He recognised the neglected importance of addressing the economics of crime, leading to world-first estimates of the costs of crime, the proceeds of crime and the extent of money laundering.  The much-referenced Tinbergen-style “Walker Gravity Model” has become the academically-recognised standard for estimating the likely international flows of laundered money.

He has been described as a lateral-thinking pioneer in the application of data analysis and econometric modelling to criminology, with a talent for “blending dodgy data and heroic assumptions, and turning them into something very useful”!


Professor Walker previously has taught and conducted research as:

  • a Visiting fellow at the Australian National University (1991);
  • a Visiting fellow at the University of Trento (Italy) (2000);
  • Principal Research Fellow, Centre for Transnational Crime Prevention, University of Wollongong (2005-2012);
  • Distinguished Professor (Postgrad Studies) at the Chinese People’s Public Security University, Beijing (2007).

He has also collaborated extensively with researchers at the Universities of Melbourne, Western Sydney, Utrecht (Netherlands), and the Catholic University of Milan (Italy).


Professor Walker’s career has focused on the analysis of crime and justice data, the development of new data sources (e.g. crime victims’ surveys, financial transactions data) and methodologies for estimating emerging threats and forecasting future trends in demand for policing and justice services. He is particularly fascinated by “new” threats, for which no or little previous research has ever been conducted.  In the 1990s, the big, unresearched issue was “the costs of crime”;  the focus later turned to the proceeds of serious and organised crime and money laundering, and more recently to cybercrime. Having already made significant contributions to the study of costs and laundering, he is looking forward to opportunities to develop new ways of researching cybercrime.


As CEO of John Walker Crime Trends Analysis, among Professor Walker’s clients have been the UN Office on Drugs and Crime, the IMF, the EU and the World Bank as well as a host of Australian and other countries’ law enforcement and justice agencies.

He is a member of the Global Initiative against Transnational Organised Crime.


2015    The Costs of Serious and Organised Crime in Australia, Australian Crime Commission, Canberra.

2014    The impact of organised crime investments on the European legitimate economy, in TransCrime,  From illegal markets to legitimate businesses: - the portfolio of organised crime in Europe.

2013    ECOLEF, The Economic and Legal Effectiveness of Anti-Money Laundering and Combating Terrorist Financing Policy: Final Report, Utrecht, report prepared for the European Commission. Utrecht University.

2013    Where does China’s Dirty Money Outflow? - The Walker Gravity Model and Five Dimensions Analysis, 杨泾, Walker J., and 吴志明. Chinese Journal of Financial Theory and Practice, July 2013.

2011    Estimating illicit financial flows resulting from drug trafficking and other transnational organized crimes, Research Report, Thomas Pietschmann, T. and Walker, J. UNODC, Vienna.

2010    Trends & Issues No 402 - The illegal movement of cash and bearer negotiable instruments: typologies and regulatory responses, Russell G Smith and John Walker, AIC.

2009    Ch.23 - ‘Measuring Global Money Laundering: “The Walker Gravity Model”’, Walker, J. and Unger B.,, in Beekarry, N. (Ed.), Combating Money Laundering And Terrorism Finance: Past And Current Challenges, Edward Elgar Publishing.

2009    "Measuring Global Money Laundering: "The Walker Gravity Model", Walker, J & Unger, B., in Review of Law & Economics: V5.

2009    The Past, Present & Possible Future of ‘the Walker model’ of transnational crime and money laundering”, XVIII Tor Vergata Conference on Money, Banking, & Finance, Rome.

2009    Utilising academic expertise to scope the criminal economy, in Accord, Issue 1, February 2009, Australian Crime Commission.

2008    Measuring a Country’s Attractiveness to Money Launderers, Report to the IMF, Washington, IMF.

2007    The Extent of Money Laundering in & through Australia in 2004, Austrac.

2007    Money Laundering in & through Australia in 2004, Stamp, J. & Walker, J., Trends & Issues No 342, AIC.

2007    Book Review: - Capitalism’s Achilles Heel – Dirty Money and How to Renew the Free-Market System, by Raymond W. Baker, in Global Crime, Volume 8, Issue 1 February 2007.

2006    Review of Donato Masciandaro (Ed.) (2004) Terrorism and Organised Crime – Financial Markets and Offshore Centres: Myths and Realities, in Global Crime Volume 7 Number 2 (May 2006).

2005    Estimating the Value of Illicit Drug Markets, Pietschmann T., and Walker J., in UNODC, 2005 World Drug Report, Volume 1 Analysis, Vienna.

2003    The Profits & Losses of Global Crime, Ontario, de Sitter Publications.

2003    Country Analysis - Australia, Montano E., and Walker J., in Clark A. et al., A Practitioner's Guide to International Money Laundering Law and Regulation, London, City and Financial Press.

2000    Legislative & Economic Factors Determining International Flows of Laundered Money, Paper presented to U.N. 10th Congress on Crime Prevention & Treatment of Offenders, Vienna.

2000    Money laundering – Quantifying International Patterns Melbourne, Australian Social Monitor, V6 , No 1.

1999    Firearm abuse and regulation around the world, in Newman G. (Ed) Global Report on Crime and Justice, New York, UNODC and Oxford University Press.

1999    How Big is Global Money Laundering Journal of Money Laundering Control, Vol3, 1.

1998    UN International Study on Firearm Regulation. UNODC, New York.

1997    Trends & Issues No.72 - Estimates of the Costs of Crime in Australia in 1996. AIC.

1995    The Extent of Money Laundering in & through Australia. Austrac.

1995    Trends & Issues No.45 - Crimes against Businesses in Australia. AIC.

1994    Crime against Businesses in Australia. AIC.

1993    Crime in Australia - the Australian Component of the 1992 International Crime Victims Survey. AIC.

1992    Trends & Issues No.39 - Estimates of the Costs of Crime in Australia. AIC

1989    Trends & Issues No.23 - A Comparison of Crime in Australia and Other Countries. AIC (Walker, J. et al).

AIC = Australian Institute of Criminology, Canberra

Austrac = Australian Transaction Reports & Analysis Centre

UNODC = United Nations Office on Drugs and Crime

Back to Staff listings