Cookie policy
Cookie policy.
Two cookies, both strictly necessary, and nothing that tracks you. Last updated 24 September 2026.
What this site stores in your browser
| Name | Type | Purpose | Lifetime |
|---|---|---|---|
ld_case_access | Cookie, strictly necessary | Opens the confidential case studies in this browser. Set when you confirm an access link. It names the link and this browser and is signed, so it cannot be altered, and we check the link is still live on every visit. HttpOnly, secure, same-site. | Until an hour after your access link ends, at most 25 hours |
ld_device | Cookie, strictly necessary | A random number that identifies this browser, set when you confirm an access link. The link is tied to it, which is how we tell when the link is opened in a second browser. It holds nothing about you. HttpOnly, secure, same-site. | Until an hour after your access link ends, at most 25 hours |
ld_has_access | Cookie, functional | Holds only "1", set when you confirm an access link. It tells the pages you already have access, so they hide the request buttons and link straight to the case studies. It opens nothing on its own. Secure, same-site. | Until your access link ends, at most 24 hours |
has-loaded-initial | Session storage, functional | Remembers that the page intro has played once, so it does not replay on every page. Cleared when you close the tab. | Current browser tab |
That is all. There are no analytics, advertising, social media or third-party cookies on this site.
Why there is no cookie banner
Strictly necessary and functional storage does not require consent under the ePrivacy rules, the GDPR or the UK PECR. A banner would ask you to consent to nothing. We have decided not to add analytics. If we ever add a cookie that is not strictly necessary, we will add a consent choice before it loads and update this page.
How to control cookies
You can delete or block cookies in your browser settings. If you block or delete ld_case_access or ld_device, the confidential case studies will not open: your access link can no longer tell your browser from another, and opening it again disables it.