Cookie policy

This website uses cookies that provide necessary site functionality and statistics to help us optimise the user experience. By continuing to use this website, you agree to the use of cookies.

What are cookies?

Cookies are small text files (up to 4KB) created by a website that are downloaded to your device either temporarily for that session only, or for a longer period of time on the hard disk (persistent cookie). Cookies provide a way for the website to recognise you and keep track of your preferences.

See the ‘How to control cookies’ section below for how you can control the use of cookies.

Why we use cookies

Cookies are used by our website to provide necessary site functionality, and through anonymised statistical analytics they also help us to identify website usability improvements and better understand our visitors and their browsing behaviour on our website.

How we use cookies

Set out below is more information on the specific cookies we use, including their purpose.

Strictly necessary cookies

These are cookies that are required for the operation of a website. They include, for example, cookies that enable you to display a cookie policy message to a user if they haven’t previously accepted it.

Cookie Description  Type and expiry


Helps prevent Cross-Site Request Forgery (CSRF) attacks.



Preserves the visitor's session state across page requests.


Analytical cookies

These cookies help us to understand how visitors interact with our website by collecting and reporting information anonymously.



Type and expiry


Used by Sitecore Engagement Analytics to identify the visitor on repeat visits to the website.

Persistent – deleted automatically after 10 years if you no longer visit

How to control cookies

You can amend your browser settings to block some or all cookies. To do this, follow the instructions provided by your preferred web browser. For your ease of reference we have provided the links below which provide instructions on how to remove and delete cookies for some of the more common web browsers.

  • Firefox
  • Internet Explorer
  • Google Chrome
  • Safari

Mobile phone users may have to refer to their handset manual for details on how to block cookies using their mobile browser.

Please be aware that if you block cookies from the website, some of the website's functions may not perform as intended.