6.30 AM Thursday 27 November 2014

How we calculate the Crime Statistics

How is this calculated?

The figures that you see represent crimes and incidents that have occurred in your safer neighbourhood area for the last three months and there is also a longer term trend graph. The figures are updated every month.

Figure A - How we calculate these statisticsWe have shown the actual numbers of crimes but to compare areas we have also shown the number of crimes per 1000 resident population. This means that if there are 5 crimes in an area in which 1000 people live then the crime rate will be shown as 5. If there is less than 1 crime per 1000 people it will be shown as a part crime (eg.0.5). Clearly there cannot be a part crime but this is how the statistics work.

The change in crime rate is also shown in terms of a percentage change. Therefore, if there were 3 crimes in a three month period and in the next 3 month period there were 6, it would be shown as a 100% increase. So, it is important to look at the number of crimes (See Figure A).  In many local areas, crime levels are low and small changes can lead to big percentage changes. Please be reassured – the likelihood of being a victim of a crime is very low. 

You will see that there is a map that is shaded and the shade indicates whether crime is average or above or below average in comparison to the average for the whole of Poole, Bournemouth and Dorset. In fact there are 5 bands and these are worked out using statistical analysis. This is referred to as standard deviation analysis and by clicking on the term you will get a detailed explanation.

Importantly, statistics don’t tell you everything and to learn more you are encouraged to visit your safer neighbourhood site and speak to your safer neighbourhood team.