A cookie is a small file, typically of letters and numbers, downloaded on to a device when the user accesses certain websites. Cookies are then sent back to originating website on each subsequent visit. Cookies are useful because they allow a website to recognise a user’s device.” – Text taken from ICO document ‘Guidance on the rules on use cookies and similar technologies’, dated 13 December 2011.

Broadly speaking, cookies are either ‘session-based’ or ‘persistent’.  The former is deleted when you close your browser.  The latter is more likely to collect a greater amount of personal information, such as browsing behaviour if so-configured, and is deleted manually or on its expiration date.

To comply with EU law, we provide you with the following information about our cookies and ask you by way of a pop-up message to "opt in" to using this website with cookies.

Required cookies

The Content Management System (CMS) which provides the core functionality to power this website uses two cookies which are required when using the website as a logged in user:

These cookies are strictly necessary for the functioning of the logged in site. We do not offer a way of disabling these, and you should not disable these if you want to be able to log in.

Non-essential cookies

Google Analytics

We use Google Analytics to track website traffic and usage, helping us deliver a better quality experience to our users.

Cookie opt-in cookie

SOS Survey cookie

Please note that some of the cookies used on our site are set by third parties who are delivering services on our behalf.

How to remove cookies from your browser

Every browser is different, and the information provided in the following links may not work for older versions of the browser you are using, but you will be able to find out how by searching the internet for "how to remove cookies from [your broswer name] [your browser version]"