Cookies can be classified as either ‘essential’ or ‘non-essential’.

Essential cookies: these are cookies that are either:

• used solely to carry out or facilitate the transmission of communications over a network; or
• strictly necessary to provide an online service (e.g. our website or a service on our website) which you have requested.

Non-essential cookies: these are any cookies that do not fall within the definition of essential cookies, such as cookies used to analyse your behaviour on a website (‘analytical’ cookies) or cookies used to display advertisements to you (‘advertising’ cookies).

Cookies can be classified as either ‘session’ or ‘persistent’, depending on how long they last after they are placed on your browser.

Session cookies: session cookies last for as long as you keep your browser open. They expire when you close your browser.

Persistent cookies: persistent cookies expire at a fixed point in time or if you manually delete them from your browser, whichever occurs first.

Cookies can be classified as ‘first party’ or ‘third party’.

• First party cookies: these are cookies placed on your device by our website domain.
• Third party cookies: these are cookies placed on your device by third party website domains.

If you require further information about cookies in general, please visit www.allaboutcookies.org

We have categorised the cookies we use in four categories

How to opt out of essential cookies

Most browsers allow you to block all cookies, including essential cookies. Please note, however, that if you block all cookies, parts of our website and its functionality may not work or display properly.

You can delete existing cookies from your browser by clearing your browsing data and ensuring that the option to delete cookies is selected.

More information

Google Analytics cookies are classified as first party cookies as they are set by our website domain, although Google collects and processes information from our use of Google Analytics. To find out more about how Google handles information collected from Google Analytics, see Google Analytics’ privacy policy, which is available here: https://support.google.com/analytics/answer/6004245

For information on how Google uses data from cookies it uses, please visit www.google.com/policies/privacy/partners/

How to opt in or out from analytical cookies

See the section below entitled How to accept or reject cookies

To opt out of Google Analytics tracking across all websites in general, you can do so here: http://tools.google.com/dlpage/gaoptout

Most browsers allow you to refuse to accept cookies and to delete cookies. The methods for doing so vary from browser to browser, and from version to version. You can however obtain up-to-date information about blocking and deleting cookies via these links:

(a) https://support.google.com/chrome/answer/95647?hl=en (Chrome);

(b) https://support.mozilla.org/en-US/kb/enable-and-disable-cookies-website-preferences (Firefox);

(c) http://www.opera.com/help/tutorials/security/cookies/ (Opera);

(d) https://support.microsoft.com/en-gb/help/17442/windows-internet-explorer-delete-manage-cookies (Internet Explorer);

(e) https://support.apple.com/kb/PH21411 (Safari); and

(f) https://privacy.microsoft.com/en-us/windows-10-microsoft-edge-and-privacy (Edge).

Blocking all cookies will have a negative impact upon the usability of many websites.

If you block cookies, you will not be able to use all the features on our website.