Cookie Policy

This site uses cookies – small text files that are placed on your machine to help the site provide a better user experience.

In general, cookies are used to retain user preferences and provide anonymised tracking data to third party applications like Google Analytics.

However, you may prefer to disable cookies on this site and on others.

The most effective way to do this is to disable cookies in your browser.

We suggest consulting the Help section of your browser or taking a look at the All About Cookies website which offers guidance for all modern browsers.


This site uses four (4) Google Analytics Cookies to provide us with anonymous information about visitor usage patterns. They allow us to count the number of visitors and see which pages they view helping us to improve the way our website works.

Further information about the individual cookies used and their purposes is outlined in the table below:

Cookie set by Cookie name Purpose Expiry
Google Analytics _utma
_utmb
_utmc
_utmz
Used to distinguish between users, determine new and returning visitors, and store the source and campaign that resulted in the visit whilst in all instances maintaining anonymity. _utma – 2 years from the initial set or subsequent update.
_utmb – 30 mins from the initial set or subsequent update.
_utmc – at end of browser session.
_utmz – 6 months from the initial set or subsequent update.