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Research query

Who is Jonathan Caplan KC, and what was his Sky News appearance?

Who is Jonathan Caplan KC, and what was his Sky News appearance?

Filed 2026-09-04. This identifies the guest in a five-minute Sky News interview and separates his documented professional background from the UAP access he describes.

Short answer

Jonathan Caplan KC is a senior English barrister who specializes in financial crime, criminal cases and cross-border matters. He is also the author of the 2026 book Not for Disclosure, based on his private study of UFOs over roughly 50 years and conversations he says he has had with scientists, researchers and intelligence officers. The public record does not identify him as an intelligence officer, scientist or government UAP investigator.

The clip aired on the British Sky News morning program Mornings with Ridge & Frost and was uploaded on 3 September 2026. Wilfred Frost interviewed Caplan about the book.

Caplan is a member of 5 Paper Buildings, a London barristers' chambers. Its profile says he was called to the bar in 1973 and appointed Queen's Counsel in 1991, the title now known as King's Counsel. It lists criminal fraud, corporate liability, media law, public inquiries, commercial disputes, arbitration and extradition among his practice areas. Chambers and Partners ranks him in London financial crime and crime and describes extensive fraud, corruption and international-case experience.

KC is a senior professional rank for barristers. It establishes that Caplan is an experienced advocate and evidence analyst within his areas of legal practice. It does not independently establish expertise in intelligence operations, aerospace, physics or UAP investigation.

His UAP standing comes from private research and unnamed contacts

Caplan tells Frost that he has followed the subject for 50 years, met prominent scientists and researchers, and received introductions through his work to intelligence officers who spoke off the record. Penguin's description of the book similarly says he assembled material from confidential contacts in intelligence, politics, science and special forces. Those descriptions establish how Caplan says he obtained information, but the interview does not name the officers or identify which claims came from which source.

In the interview Caplan says:

  • The evidence that non-human visitors have reached Earth meets his standard of proof beyond reasonable doubt.
  • UAP reality is an “open secret” in Washington and Congress has been misled for 80 years.
  • The United States has recovered crashed craft since the 1940s, while China and Russia have their own recoveries and reverse-engineering programs.
  • Governments preserve secrecy to protect strategic advantage and because they cannot answer basic questions about the phenomenon's origin and intentions.
  • A CIA counterproliferation unit studies non-human intent with intelligence from the State Department.

The last claim is unusually specific and potentially checkable, but Caplan supplies no unit name, document or attributable source in the segment.

The segment presents his conclusion rather than testing it

Frost frames Caplan's legal work as “literally evidence-based” and asks whether the book reaches the criminal-law standard of proof beyond reasonable doubt. Caplan answers that there is “no question about it,” but the program does not examine any particular document, dataset or source behind that conclusion. His legal credentials are genuine, while the factual basis for his UAP conclusions remains in his book and unnamed-source network rather than in this interview.

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