Our site uses WordPress, a leading open source blog platform. It is necessary to keep a session id whilst you visit the site – this allows the site to remember your settings and choices from one page to the next. It is destroyed when you leave the site. We also use little bits of information whilst you are visiting the site to maintain a uniform user experience – for example, remembering which tab you have clicked when you refresh a page. They are destroyed when you exit the site.
We also use Google Analytics to inform us of usage and behaviour of our visitors whilst on our site. This information is anonymous and does not identify you to us in any way. These cookies (typically _utma and _utmz) remain valid for a year. The information collected allows us to see what pages are viewed and for how long – also how people use the site and when. This information is important to us as it allows us to focus our efforts in the areas most used and needed by our visitors. No personally identifiable information is stored or collected.