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Prospective crime mapping in operational context Final report

Prospective crime mapping in operational context Final report

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the busy schedule of the new Divisional Commander, the research team was unable to meet with andbrief him on the project until the end of October, nearly two and a half months <strong>in</strong>to the pilot.Furthermore, key members of the Command Team had arranged annual leave and were unavailabledur<strong>in</strong>g the early days of the project period. Dur<strong>in</strong>g the first meet<strong>in</strong>g that could be arranged post-August, it was revealed that <strong>in</strong>stead of us<strong>in</strong>g the predictive capability of the maps, when the mapswere used, attention was <strong>in</strong>stead focused on the locations of burglaries that had occurred with<strong>in</strong> thelast two weeks, the approach that had previously been used on the Division (and the approach thatPromap outperformed and was designed to replace). The reason for this was that it was felt that theareas identified as be<strong>in</strong>g at risk were too large. Consequently, the software was further ref<strong>in</strong>ed togenerate predictions for smaller areas.As a result of these factors, summarised <strong>in</strong> Figure 5.3, it took a few months for the system to be f<strong>in</strong>etunedand for the Command Team members to unite to give Promap a high profile across the Division.Because the pilot was only seven months <strong>in</strong> duration and almost three months had elapsed before themaps were be<strong>in</strong>g produced <strong>in</strong> the way <strong>in</strong>tended, it was not implemented over a sufficient period to fulfilits potential. As will become apparent, the pilot expired just when it was becom<strong>in</strong>g accepted andunderstood across the Division.User-friendl<strong>in</strong>ess and impact on workloadGenerally, the Intelligence Analysts found the maps easy to produce, however, they voiced the op<strong>in</strong>ionseveral times throughout the pilot that hav<strong>in</strong>g the system on the Divisional network could havesignificantly improved the ease of produc<strong>in</strong>g the maps. More automation of the process would havealso reduced the time and effort <strong>in</strong>volved. For example, the analysts regularly spent time manuallyremov<strong>in</strong>g distraction burglaries from the dataset (as they felt that these burglaries would conform todifferent patterns and trends than other residential burglaries, although this is an empirical questionworth address<strong>in</strong>g). Only approximately 80 per cent of the data were automatically geo-coded by theforce IT system, and hence the analysts had to spend time manually geo-cod<strong>in</strong>g the rema<strong>in</strong>der. Ofcourse, these issues are germane to the force IT system rather than the Promap software. However,they are worth not<strong>in</strong>g as it is likely that similar issues may arise <strong>in</strong> other police force areas.Despite these issues, the analysts did not feel that the maps impacted greatly on their day-to-daywork. In some cases, where they were specifically responsible for summaris<strong>in</strong>g a burglary problem(e.g. produc<strong>in</strong>g a problem profile or a specific task<strong>in</strong>g document), they <strong>report</strong>ed that the system helpedto illustrate patterns and trends they felt would not otherwise have been considered. The onlysignificant effect that the production of the maps had on the Intelligence Analysts was their start<strong>in</strong>gtime at work. Because the maps had to be available to discuss <strong>in</strong> the daily brief<strong>in</strong>g meet<strong>in</strong>g at9:15a.m., the analysts had to ensure they were at work by 8a.m. By the end of the pilot, each analystwas only produc<strong>in</strong>g the maps once a week, and so the time <strong>in</strong>volved was not a considerable<strong>in</strong>convenience.50

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