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Understanding Theft of 'Hot Products'. Problem-Oriented Guides for Police, COPS, US Department of Justice

The Problem-Oriented Guides for Police summarize knowledge about how police can reduce the harm caused by specific crime and disorder problems. They are guides to preventing problems and improving overall incident response, not to investigating offenses or handling specific incidents. More...

Copper Cable Theft - Revisting the Price- Theft Hypothesis

To test the commonly espoused but little examined hypothesis that fluctuations in the price of metal are associated with changes in the volume of metal theft.
More...

Consistency and specificity in burglars who commit prolific residential burglary: Testing the core assumptions underpinning behavioural crime linkage

Behavioural crime linkage is underpinned by two assumptions: (a) that offenders exhibit some degree of consistency in the way they commit offences (their modus operandi [MO]); and, (b) that offenders can be differentiated on the basis of their offence behaviour. The majority of existing studies sample at most three crimes from an offender's series of detected crimes and do not examine whether patterns differ across offenders. Here, we examine patterns observed across the entire detected series of each sampled offender, and assess how homogeneous patterns are across offenders. More...

Human trafficking for labour exploitation: Innovative approaches to prevention, prediction and protection

Dr Ella Cockbain has recently been awarded a prestigious Economic and Social Research Council Future Research Leaders Fellowship. The award is for a three-year study into trafficking for labour exploitation, under the mentorship of Professor Kate Bowers. The project is designed to improve understanding of and responses to labour trafficking, which is a recognised priority in the Home Office’s counter-organised crime strategy and research agendum. Key foci include assessing the scope, nature and impacts of labour trafficking and developing predictive models of risk, using empirically-substantiated individual- and area-level risk factors. A combination of qualitative and quantitative methods will support a nuanced, multi-faceted assessment of this complex issue. The study will include a three-month international placement at the Netherlands Centre for the Study of Crime and Law Enforcement. The project has the support of the UK Human Trafficking Centre, the National Crime Agency and the Dutch National Rapporteur on Trafficking in Human Beings. More...

An exploratory study of the sexual exploitation of boys and young men in the UK

We are pleased to announce UCL’s participation in a Nuffield-funded study into the sexual exploitation of boys and young men. UCL is working with Barnardo’s and NatCen Social Research on this collaborative project, designed to find out more about the characteristics of male victims, their exploitation and support needs. This scoping study is the first of its kind in the UK to focus specifically on male victims. UCL researchers are conducting a large-scale analysis of over 9,000 suspected CSE cases (led by UCL’s principal investigator Dr Ella Cockbain) and an evidence assessment (led by Dr Helen Brayley). Our partners at NatCen (the consortium lead) are conducting in-depth interviews with professionals. We are working with young people and practitioners to receive feedback on our findings. The study is expected to inform responses to male victims, who have often been overlooked in research, policy and practice. More...

Dr Kevin Chetty

Lecturer

Address: UCL Department of Security and Crime Science, 35 Tavistock Square, London, WC1H 9EZ
Phone No: +44(0)20 3108 3169
Fax No: +44(0)20 3108 3088
Extension: 53169
Kevin Chetty

Dr. Kevin Chetty is a lecturer in the Department of Security and Crime Science at University College London. He is the Module Convener for the Crime Mapping & Spatial Analysis Courses, and the Deputy Director of the newly formed JDI Centre for Security Technology (www.ucl.ac.uk/cst). Kevin’s research focuses on new passive RF sensor systems that exploit wireless communication networks for uncooperative detection of personnel, vehicle and marine targets. Other research interests include target detection and classification using acoustic micro-Doppler signatures, ultra-wideband and through-the-wall radar, and software defined sensor systems. He has experience consulting for both government and industrial organisations such as the UK Maritime and Coastguard Agency and Guidance Microwave. Kevin is a member of the IEEE and IET, a reviewer for the IET Radar, Sonar and Navigation journal, and author to over twenty conference and journal papers.

Journal Publications

Wireless Passive Radar System for Real Time Through-Wall Detection. B. Tan, K. Woodbridge and K. Chetty. IEEE Transactions on Aerospace and Electronic Systems. (Submitted 2014).

Extended Time Processing for Passive Bistatic Radar. G. E. Smith, K. Chetty, C. J. Baker and K. Woodbridge. IET Radar, Sonar and Navigation. Vol. 7, No. 9, pp 1012-1018, December 2013

Development and Demonstration of a Software Radio Based Wireless Passive Radar. K. Woodbridge, K. Chetty, L. Young, N. Harley, G. Woodward. IET Electronics Letters, Vol. 48, No. 2, pp 120-121. 19th January 2012.

Through-The-Wall Sensing of Personnel using Passive Bistatic WiFi Radar at Standoff Distances. K. Chetty, G.E. Smith and K. Woodbridge. IEEE Transactions on Geoscience and Remote Sensing. Vol. 99, pp 1-10, 2011.

Classification of Personnel Targets by Acoustic Micro-Doppler Signatures. A. Balleri, K. Chetty and K. Woodbridge. IET Radar, Sonar and Navigation. Vol. 5, No. 9, pp 943-951, 2011.

Public Attitudes To Airport Security: The Case of Whole Body Scanners. T. Nissen, K. Bowers and K.Chetty. Security Journal. Security Journal 25(3):229-243. 2011.

Determination of Sweep Linearity Requirements in FMCW Radar Systems based on Simple Voltage-Controlled Oscillator Sources. P. Brennan, Y. Huang, K. Chetty and M. Ash. IEEE Transactions on Aerospace and Electronic Systems. Vol 47, No.6, pp 1594-1604, 2011.

High Speed Optical Observations and Simulation Results of SonoVue™ Microbubbles at Low Insonation Pressures.  K. Chetty, E. Stride, C.A. Sennoga, J. V. Hajnal and R. J. Eckersley. IEEE Transactions on Ultrasonics, Ferroelectrics & Frequency Control, Vol.55, No.6, pp 1333-1342, 2008.

Microbubble Contrast Agent Detection using Binary Coded Pulses.  R. J. Eckersley, M. Tang, K. Chetty and J. V. Hajnal.  Ultrasound in Medicine & Biology, Vol.33, No. 11, pp 1787-1795, 2007.

Investigating the Microbubble Response to Chirp Encoded Multipulse Sequences.  K. Chetty, J. V. Hajnal and R. J. Eckersley. Ultrasound in Medicine & Biology, Vol. 32, No. 12, pp 1887-1895, 2006.

Book Chapters

Eyes on the Forest: CCTV and Ecotourism in Indian Tiger Reserves, Ronald V Clarke, Kevin Chetty and Mangai Natarajan. In Situational Prevention of Poaching. Edited by Andrew M Lemieux. Crime Science Series. Published by Routledge, 2014.

Conference Proceedings   

A Real-Time High Resolution Passive WiFi Doppler- Radar and Its Applications. B. Tan, K. Woodbridge and K. Chetty. International Radar Conference, Lille, France. October 2014

High-gain Tri-Band Reconfigurable Vivaldi Antenna. C. Borda, K. Tong, K. Chetty and P. Brittan. IEEE-APS Conference on Antennas and Propagation in Wireless Communications. Palm Beach, Aruba. August 2014

High-gain Frequency Reconfigurable Vivaldi Antenna. IEEE International Symposium on Antennas and Propagation. C. Borda, K. Tong, K. Chetty and P. Brittan. Tennessee, USA July 2014

Data Processing for Real-Time Wireless Passive Radar. K. Chetty, B. Tan and K. Woodbridge. IEEE Radar Conference. Cincinnati, USA. May 2014

Modelling of a Multi-Frequency Ground Penetrating Radar for Rotary UAV Platforms. A. Amiri, K. Tong, K, Chetty. IET International Conference on Radar Systems. Glasgow, UK. October 2012

Reconfigurable Multiband Patch Antenna for Ground Penetrating Radar Applications. A. Amiri, K. Tong, K, Chetty. International Conference on Electromagnetics in Advanced Applications. Cape Town, South Africa. September 2012

Frequency-Agile Non-Coherent Ultrasound Radar for Collection of Micro-Doppler Signatures.  A Balleri, K. Chetty, and K. Woodbridge. IEEE Radar Conference. Kansas, USA. pp 45-48. May 2011

Through-Wall Sensing of Personnel at Standoff Distances using Passive Bistatic WiFi Radar. K. Chetty, K. Woodbridge, G. Smith, Hui Guo, W. Al-Ashwal and M. Ash. American Electromagnetics Conference. Ottawa, Canada. July 2010

Passive Bistatic WiMAX Radar for Marine Surveillance. K. Chetty, G. Smith, H. Guo, and K. Woodbridge.  IEEE Radar Conference: Global Innovation in Radar. Washington, USA. May 2010

FMCW Radar Imaging of Avalanche-Like Snow Movements. M. Ash, K. Chetty, P. Brennan, J. McElwaine and C. Keylock.  IEEE Radar Conference: Global Innovation in Radar. Washington, USA. May 2010

Target Detection in High Clutter Using Passive Bistatic WiFi Radar. K. Chetty, G. Smith, H. Guo, and K. Woodbridge.  IEEE Radar Conference: From Science to Systems. California, USA. May 2009

Detecting Terrorists: Requirements and System Specifications for a Radar Based System. H. Borrion, N. Bouhana, H. Guo, K. Chetty, G. Smith, K.Woodbridge and C.J. Baker. NATO SET-125 Symposium on Sensors and Technology for Defence Against Terrorism. Manheim, Germany. April 2008. 

High Speed Optical Observations and Simulation Results of SonoVue™ Microbubbles.
K. Chetty, E. Stride, C.A. Sennoga, J. V. Hajnal and R. J. Eckersley.  The Twelfth European Symposium on Ultrasound Contrast Imaging. Rotterdam, The Netherlands. January 2007.

High Speed Optical Observations and Simulation Results of Lipid Based Microbubbles at Low Insonation Pressures.  K. Chetty, E. Stride, C.A. Sennoga, J. V. Hajnal and R. J. Eckersley.  IEEE Ultrasonics Symposium. Vancouver, Canada. October 2006.

Engineering the Acoustic Response of Lipid-Based Microbubbles: Simulations and High Speed Optical Imaging Results.  E. Stride. K. Chetty, C.A. Sennoga, J. V. Hajnal and R. J. Eckersley.  Journal of the Acoustical Society of America. Hawaii, USA. November 2006.

Dynamic Interactions between Contrast Agent Microbubbles: High Speed Camera Observations and Simulation Results.  E. Stride, K. Chetty and R. J. Eckersley.
6th International Symposium on Therapeutic Ultrasound, Oxford, United Kingdom. September 2006.

Combining Multipulse Sequences with Chirp Encoding for Enhanced Sensitivity to Microbubbles.  K. Chetty and R. J. Eckersley.  Institute of Acoustics Spring Conference. Southampton, United Kingdom. April 2006.

Modelling Microbubble Behaviour to Coded, Multipulse Sequences.  K. Chetty and R. J. Eckersley.  Medical Images and Signals Inter-disciplinary Research Consortium (MIAS-IRC) Plenary Meeting. Manchester, United Kingdom. November 2005.

Modelling the Nonlinear Microbubble Response to Coded, Multipulse Sequences.  K. Chetty and R. J. Eckersley.  IEEE Ultrasonics Symposium, Rotterdam, The Netherlands. October 2005.

"Micro-Doppler Analysis with a Frequency Modulated Continuous Wave Sensor System". EPSRC Bridging the Gaps Grant. March 2014 - August 2014. £5,000

“A Software Defined Wireless Detection System for Commercial and Security Monitoring”. Discovery to Use Grant. June 2013-June 2014. £53,875

“Enhancing Computer and Visualisation-Based Courses with e-Learning Tools” UCL E-Learning Development Grant (ELDG). August 2013. £1,700

“Through Wall Wireless Based Detection of Personnel”. MOD Centre for Defence Enterprise. Dismounted Urban Sensing and Targeting (DUST). Jan 2012. £12,486

“A Software Defined Wireless Detection System for Home and Environment Monitoring”, UCL/EPSRC Enterprise Award. Jan - Dec 2012. £58,559

“Feasibility Study into Underwater Acoustic Micro-Doppler Target Recognition”, EU Joint Research Centre, Ispra, Italy Nov 2011. £20,000

“Micro-Doppler Target Classification and Tracking”, EPSRC, Feb 2010- Feb 2011. £95,017

“Feasibility study for investigation of a wireless based passive detection system for marine surveillance” Maritime and Coastguard Agency, Aug 2009-Nov 2009. £25,092

“Detection and Tracking using Wireless Networks “ EPSRC, Nov 2007 – Oct 2009. £395,000 - (Postdoctoral Researcher)

Case Studies

National Instruments (NI) Case Study

Media Coverage of Passive WiFi Radar Work

Popular Science Magazine

wired.co.uk

phys.org

Engadget

Extreme Tech

Ubergizmo

Discovery News

Future Tech

Videos and Animations

WiFi Radar Animation

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