This site uses cookies to personalise your visit and to help us understand how the site is being used.


Cookies are small text files stored by websites on visitors’ computers. Their purpose is to identify visitors as they move around the site, or to recognise them when they return.

How this site uses cookies

The site uses cookies in three ways:

  • Analytics
  • Site functionality
  • Third party functionality


We use Google Analytics to study how the site is being used, for example how many visitors the site receives, how they arrive at the site and what pages they look at.

Google Analytics cookies gather and aggregate anonymous site use information, which we can view and report upon through our Google Analytics account.

Site functionality

The site creates new cookies when visitors arrive so that they can be recognised as they move from page to page. This allows the site to recognise acts like submitting forms and to present personalised information when visitors log in.

These cookies disappear when the visitor closes their web browser.

Third party sites

Sometimes we embed content from certain other sites, for example to display videos or slideshows.

These third party sites may create cookies through this embedded content and this falls outside of our control.

You should check the relevant third party sites for further information about their cookies.

Specific cookie information

The following table lists the main cookies that we use. We endeavour to keep this list up to date but we recommend visitors check their web browser content settings to be sure we haven’t missed anything.




Purpose and more information

Google Analytics





To report on anonymous and aggregated use of this site


Google privacy policy

Site functionality


Varies, but begins with SESS

To provide continuity and personalisation for the visitor as they travel around the site.

Third party

Various, but look for and


Third party sites may choose to create these cookies when you view their content through our site.


See the individual sites’ privacy policies for more information.

How to turn off cookies

Most modern web browsers allow you to block the setting of cookies completely or just for a specific site. Check your browser settings to find out which cookies are already set and to delete or block any that you don't want.