To put things into perspective, every time you visit a website, your computer stores the code and images from that site on your computer in a Temporary Internet Files folder. Cookies are stored in the very same way and are purely 'passive' in nature, much like a photograph or logo from a web page.
Our site will not function without cookies, and so, by using our website you automatically agree to allow us to store cookies on your browsing device purely so that we may operate our website normally. If you don't wish to allow us to store cookies, you can turn off cookies in your browser ( please refer to the releveant help files for your browser - be aware this will most likely stop this website functioning correctly ) or simply do not visit the site.
For more information about this change in the law, please visit the official Information Commissioners Office page here.
For a general explanation of what an HTTP Cookie is, and why they are so commonly used please see the related Wikipedia article here.