Also the JIC weekly meetings.
>Ever since World War II, the chief of the London station of the United States Central Intelligence Agency has attended the JIC's weekly meetings. One former US intelligence officer has described this as the "highlight of the job" for the London CIA chief.[8] Resident intelligence chiefs from Australia, Canada, and New Zealand may attend when certain issues are discussed.
https://en.wikipedia.org/wiki/Joint_Intelligence_Committee_(United_Kingdom)