This was last updated on 23 March 2018.
This webite uses cookies – these are small text files that are placed on your machine to help the site provide a better user experience.
You can choose to accept or decline cookies. Most web browsers automatically accept cookies, but you can usually modify your browser setting to decline cookies or receive a warning before a cookie is stored if you prefer. Please refer to your Internet browser’s instructions or help screen to learn more about these functions and to specify your cookie preferences.
If you choose to decline cookies, you may not be able to fully experience the interactive features of our websites or any other websites that you visit.
You can manage these small files yourself and find out more about them at www.aboutcookies.org.
Information about cookies
A cookie is a small file of letters and numbers that, if you agree to their use, is stored on your browser or the hard drive of your computer or device. They contain information that is transferred to your hard drive.
In general, cookies are used to retain user preferences, store information for things like shopping baskets (there aren’t any on this website), and provide anonymised tracking data to third party applications like Google Analytics.
We use the following cookies:
| Category | Cookie Name | Purpose | Duration |
| Visitor Analytics | _ga | Used to see how website users navigate the site. | 2 Years |
| Visitor Analytics | _gat | Used to see how website users navigate the site. | Until you close the browser |
| Visitor Analytics | _gid | Used to see how website users navigate the site. | 1 Day |
| System | catAccCookies | Used by the Cookie plugin to check that your response is remembered | Until you close the browser |
| System | devicePixelRatio | This cookie records your device’s pixel ratio. If your screen resolution is a retina or Hi DPI screen, then the website may choose to serve you higher resolution graphics. | Until you close the browser |
Opt-out
In order to provide website visitors with more choice on how data is collected by Google Analytics, Google has developed the Google Analytics Opt-out Browser Add-on. The add-on communicates with the Google Analytics JavaScript (ga.js) to stop data being sent to Google Analytics. The Google Analytics Opt-out Browser Add-on does not affect usage of the website in any other way. A link to further information on the Google Analytics Opt-out Browser Add-on is provided below for your convenience.
http://tools.google.com/dlpage/gaoptout?hl=None
For more information on the usage of cookies by Google Analytics please see the Google website. A link to the privacy advice for this product is provided below for your convenience.
http://www.google.com/analytics/learn/privacy.html
Disabling Cookies
If you would like to restrict the use of cookies you can control this in your Internet browser. Links to advice on how to do this for the most popular Internet browsers are provided below for convenience and will be available for the Internet browser of your choice either online or via the software help (normally available via key F1).
Internet Explorer: http://windows.microsoft.com/en-GB/windows7/Block-enable-or-allow-cookies
Google Chrome: https://support.google.com/chrome/bin/answer.py?hl=en-GB&answer=95647&p=cpn_cookies
Mozilla Firefox: http://support.mozilla.org/en-US/kb/Blocking%20cookies
Apple Safari: http://docs.info.apple.com/article.html?artnum=32467