Thames Valley Air Ambulance (TVAA) makes use of cookies to function correctly and to provide the best user experience possible for you, the visitor. If you continue to use this site, you are giving consent for the site to use cookies on this device. This method of implied consent is in accordance with the Information Commissioner’s directives.

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A cookie is a small text marker stored on your computer that enables us to track the use of our web site.

When you visit our web site we will collect data from your computer or other device such as a smart phone or tablet using "cookies".

Cookies are created by your web browser when you visit our website. Every time you go back to the website, your browser will send the cookie file back to the website's server. They improve your experience of using our website, for example, by remembering your preference settings so that you are presented with information likely to be most relevant to you, and by measuring your use of the website to enable us to continuously improve our website to ensure that it meets your needs.

Cookies can also be used to show you relevant TVAA content on social media services such as Facebook - these are known as 'retargeting' or 'advertising' cookies.

If you visit our website as an anonymous visitor (e.g. you switch off cookies), TVAA may still collect certain information from your browser, such as the IP address (an IP address is a number that can uniquely identify a computer or other internet device).

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TVAA’s website make use of the following types of cookies:

  1. Strictly necessary cookies – these enable services you have specifically requested
  2. Performance cookies – these collect anonymous information on the pages visited
  3. Functionality cookies – these remember choices you make to improve your experience
  4. Targeting cookies or advertising cookies – these collect information about your browsing habits to make advertising relevant to you and your interests.

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No personal information is stored in these cookies however, if you wish to ensure that no cookies are created on your device, then you are free to use your web browser’s settings to turn off cookies.

For further information, please see the Information Commissioner’s website or the All About Cookies website.

Please be aware that restricting cookies may impact the functionality of Our website.

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Our website may contain hyperlinks to websites owned and operated by other organisations. These third-party websites have their own privacy policies, including policies on their use of cookies, and we urge you to review them. They will govern the use of personal information you submit, or which is collected by cookies whilst visiting these websites.

We cannot accept any responsibility or liability for the privacy practices of such third-party websites and your use of such websites is at your own risk.

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Please note that, of the list of cookie providers, below, some may distribute the cookie information gathered with other third party websites for the purpose of activity tracking. You can find out more about the policy of each cookie provider on their respective privacy pages.

We use:

Cookie Name

Used by




Google Analytics

Stores the number of visits of a user, the time of their first visit, the previous visit, and the current visit. It does not contain any personal information and is used only for analytical purposes.  

2 years from set/update


Google Analytics

This performance cookie stores where a user came from (eg. search engine, search keyword, link).

6 months from set/update

_ga and _gid

Google Analytics

Used to distinguish between website users in Google Analytics.

2 years and 2 hours

_gat_UA-XXXXXXXX-X (where the Xs are replaced by the Google Analytics ID number)

Google Analytics

Used to moderate calls to the Google Analytics service.

1 minute



Set as part of the ShareThis service and monitors "click-stream" activity, e.g. web pages viewed, navigation from page to page, time spent on each page etc. The ShareThis service only identifies a user if they have separately signed up with ShareThis for a ShareThis account and given them consent. Checks how long you stay on a site: when a visit starts and ends. It does not contain any personal information and is used only for analytical purposes.

14 months



Stores whether the user has accepted the cookie message or not.

365 days



Used for authenticating a user's session after logging in. Closes when you exit the browser.

End of session



Tells our infrastructure which server to handle the request.

End of session



A binary flag which stores whether a user is logged in or not.

End of session

ai_session and ai_user


Tracks users as they navigate the website predominately for infrastructure performance insights.

1 day



Keeps track of a donor’s preference to show their name during a Direct Debit.

End of session



These cookies are managed by DoubleClick, an advertising platform we use to display adverts. They help us identify which visitors to our website have seen or clicked one of our adverts.

2 years from set/update



Identify individual clients behind a shared IP address and apply security settings on a per-client basis

365 days