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Peter Gudge
Tel: +44 (0)20 3108 3206

Advanced Hotspot Analysis


Advanced hotspot analysis (1 day GIS-based course for users of MapInfo or ArcGIS)

“‘Fantastic – has really strengthened my spatial analysis skills’” Police Intelligence Analyst

This one day hands-on training course aims to further develop the skills an experienced intelligence/crime/community safety analyst has for understanding hotspots by introducing several advanced techniques that can assist them examine spatial patterns in crime data.  In particular, the course aims to develop the analyst’s skills in spatial statistical techniques that identify emerging hotspots and spatial significance mapping (i.e. testing and observing in statistical terms whether a geographic pattern is particularly unusual).  The course may introduce new techniques and demystify others, with the aim of examining their practical application for understanding hotspots.

The course is held at our offices in London, but can also be delivered at your site for a minimum of 6 staff.

Advanced hotspot analysis (1 day GIS-based course for users of MapInfo or ArcGIS)

Aimed at: Police and Community Safety Partnrship analysts, researchers and information officers

Interest groups: hotspots, spatial statistics, spatial significance, spatial autocorrelation, spatial association, Local Indicators of Spatial Association, dual kernel density estimation, emerging problem areas

Entry Requirements: At least a foundation in GIS software and already experienced in using KDE. The course is only suitable to users of Mapinfo or ArcGIS.

Methods and techniques that are taught on the course include,

  • Risk based clustering techniques:  Techniques such as dual kernel density estimation allow for a secondary variable (e.g. population) to be considered in determining hotspots.  That is, these techniques can be used to identify hotspots based on not only the distribution of crime, but how the underlying population influences this spatial distribution.  We examine the use of dual KDE and its practical application
  • Identifying emerging problem areas: A common analytical requirement is to determine how patterns of crime have changed over time.  One approach for observing changes in crime is with map subtraction – where hotspot maps are created for two time periods, and a change map is produced showing those areas where crime has reduced or has increased.  A problem with the map subtraction approach is that the change map can result in identifying a large number of areas where crime has increased, restricting the ability to be selective in the targeting of resources.  On this course we introduce a more useful analytical approach which involves identifying areas that have contributed most to an increase.  By identifying the areas that have most contributed to an increase can then help to more specifically targeting response resources.
  • Local Indicators of Spatial Association: Local Moran’s I, Local Geary’s C, and the Getis and Ord Gi and Gi* statistics – this group spatial statistics provides a means of extending beyond methods such as kernel density estimation by identifying those areas where the clustering of crime points is significant.  That is, they can determine areas that can be statistically defined as hot from those that are not, plus rank each hotspot according to significance thresholds (i.e. 95%, 99%, 99.9%).  This module guides the delegate through these techniques and discusses their practical application.  Particular emphasis is placed on using the Gi* statistic.

Some of the functionality we teach on the course is not available in standard GIS packages.  ArcGIS v9.3 and above has the functionality for most of what we teach on this course.  We therefore make use of freeware software that includes the Dispersion Calculator, CrimeStat and RooksCase to perform some of the analytical techniques, displaying the results in your preferred GIS.

Course tutor:
Spencer Chainey

May, 2010
“Very useful, especially the edge effects stuff!”  Partnership Analyst

February, 2010

“Very well structured and delivered.”

“One of the few courses I’ve been on where I feel I can easily apply the skills and techniques to real world problems in the office.”  Julia West+

“The tutor takes time to make sure you understand each section.” O Ducran

December, 2009

“In a word – ‘excellent’.”  Police Analyst

“Excellent course, well presented.” Police Analyst

“Fantastic – has really strengthened my spatial analysis skills” Police
Intelligence Analyst

Course Dates:

3 September 2015

Course Cost

£475 per delegate

Group discount: 10% discount for bookings of two or more.  To qualify, all group delegates must be booked at the same time.

Accommodation: UCL has a number of residences that are available to book when courses are held in the summer months.  These are available from £45 per night.  We recommend Frances Gardner House or James Lighthill House due to their proximity to the JDI and their facilities.  Please visit this site ( for more details and to make any accommodation bookings. We advise booking early.  The accommodation is basic, but clean and fantastic value for London.

For something a bit grander we recommend the Cartwright Gardens Apartments:

For short stays:

For longer stays:

Page last modified on 07 nov 12 11:45 by Kirstie Hampson