Latest release of files from MI5
Today we have made available a selection of previously top secret files from MI5.
The records cover a range of subjects predominantly from the organisation’s early years before the First World War, up until the mid-1970s.
The release reveals new details in the cases of the Cambridge spies Kim Philby, Anthony Blunt, and John Cairncross, including their confessions, and also sheds light on related cases including Constantin Volkov, and Philby’s first wife Litzi.
Also included are historical reports and other papers from 1909 until 1959, a wartime ‘watchers’ guide offering surveillance advice to MI5 officers, papers related to investigations into the Communist Party of Great Britain, and communications between MI5 and the FBI.
All the files in the release will be available to download from Discovery, our catalogue.
Some of these files will also be put on display in our upcoming exhibition, MI5: Official Secrets. Read more about our exhibition here.
KV 1: The Security Service: First World War Historical Reports and Other Papers
KV 2: The Security Service: Personal (PF Series) Files
- KV 2/4658 (PDF, 359 MB)
- KV 2/4659 (PDF, 41 MB)
- KV 2/4660 (PDF, 41 MB)
- KV 2/4661 (PDF, 46 MB)
- KV 2/4662 (PDF, 91 MB)
- KV 2/4663 (PDF, 43 MB)
- KV 2/4664 (PDF, 29 MB)
- KV 2/4665 (PDF, 64 MB)
- KV 2/4666 (PDF, 28 MB)
- KV 2/4667 (PDF, 33 MB)
- KV 2/4668 (PDF, 18 MB)
- KV 2/4669 (PDF, 66 MB)
- KV 2/4670 (PDF, 83 MB)
- KV 2/4671 (PDF, 35 MB)
- KV 2/4672 (PDF, 67 MB)
- KV 2/4673 (PDF, 48 MB)
- KV 2/4674 (PDF, 36 MB)
- KV 2/4675 (PDF, 30 MB)
- KV 2/4676 (PDF, 45 MB)
- KV 2/4677 (PDF, 20 MB)
- KV 2/4678 (PDF, 29 MB)
- KV 2/4679 (PDF, 18 MB)
- KV 2/4680 (PDF, 27 MB)
- KV 2/4681 (PDF, 30 MB)
- KV 2/4682 (PDF, 42 MB)
- KV 2/4683 (PDF, 35 MB)
- KV 2/4684 (PDF, 17 MB)
- KV 2/4685 (PDF, 19 MB)
- KV 2/4686 (PDF, 15 MB)
- KV 2/4687 (PDF, 31 MB)
- KV 2/4688 (PDF, 10 MB)
- KV 2/4689 (PDF, 14 MB)
- KV 2/4690 (PDF, 32 MB)
- KV 2/4691 (PDF, 50 MB)
- KV 2/4692 (PDF, 51 MB)
- KV 2/4693 (PDF, 28 MB)
- KV 2/4694 (PDF, 37 MB)
- KV 2/4695 (PDF, 50 MB)
- KV 2/4696 (PDF, 51 MB)
- KV 2/4697 (PDF, 61 MB)
- KV 2/4698 (PDF, 50 MB)
- KV 2/4699 (PDF, 34 MB)
- KV 2/4700 (PDF, 90 MB)
- KV 2/4701 (PDF, 42 MB)
- KV 2/4702 (PDF, 74 MB)
- KV 2/4703 (PDF, 38 MB)
- KV 2/4704 (PDF, 63 MB)
- KV 2/4705 (PDF, 70 MB)
- KV 2/4706 (PDF, 57 MB)
- KV 2/4707 (PDF, 76 MB)
- KV 2/4708 (PDF, 91 MB)
- KV 2/4709 (PDF, 45 MB)
- KV 2/4710 (PDF, 35 MB)
- KV 2/4711 (PDF, 103 MB)
- KV 2/4712 (PDF, 37 MB)
- KV 2/4713 (PDF, 82 MB)
- KV 2/4714 (PDF, 67 MB)
- KV 2/4715 (PDF, 43 MB)
- KV 2/4716 (PDF, 86 MB)
- KV 2/4718 (PDF, 89 MB)
- KV 2/4719 (PDF, 86 MB)
- KV 2/4720 (PDF, 86 MB)
- KV 2/4721 (PDF, 81 MB)
- KV 2/4722 (PDF, 41 MB)
- KV 2/4723 (PDF, 80 MB)
- KV 2/4724 (PDF, 39 MB)
- KV 2/4725 (PDF, 35 MB)
- KV 2/4726 (PDF, 42 MB)
- KV 2/4727 (PDF, 38 MB)
- KV 2/4728 (PDF, 43 MB)
- KV 2/4729 (PDF, 42 MB)
- KV 2/4730 (PDF, 23 MB)
- KV 2/4731 (PDF, 48 MB)
- KV 2/4732 (PDF, 6 MB)
- KV 2/4733 (PDF, 17 MB)
- KV 2/4734 (PDF, 22 MB)
- KV 2/4735 (PDF, 27 MB)
- KV 2/4736 (PDF, 21 MB)
- KV 2/4737 (PDF, 56 MB)
- KV 2/4738 (PDF, 47 MB)
- KV 2/4739 (PDF, 138 MB)
- KV 2/4740 (PDF, 25 MB)
- KV 2/4741 (PDF, 19 MB)
- KV 2/4742 (PDF, 62 MB)
- KV 2/4743 (PDF, 8 MB)
- KV 2/4744 (PDF, 49 MB)
- KV 2/4745 (PDF, 35 MB)
- KV 2/4746 (PDF, 70 MB)
- KV 2/4747 (PDF, 48 MB)
- KV 2/4748 (PDF, 67 MB)
- KV 2/4750 (PDF, 70 MB)
- KV 2/4751 (PDF, 69 MB)
- KV 2/4752 (PDF, 59 MB)
- KV 2/4753 (PDF, 56 MB)
- KV 2/4754 (PDF, 26 MB)
KV 3: The Security Service: Subject (SF series) Files
KV 4: The Security Service: Policy (Pol F Series) Files
- KV 4/477 (PDF, 70 MB)
- KV 4/478 (PDF, 88 MB)
- KV 4/479 (PDF, 47 MB)
- KV 4/480 (PDF, 34 MB)
- KV 4/481 (PDF, 28 MB)
- KV 4/482 (PDF, 58 MB)
- KV 4/483 (PDF, 37 MB)
- KV 4/484 (PDF, 45 MB)
- KV 4/485 (PDF, 32 MB)
- KV 4/486 (PDF, 39 MB)
- KV 4/487 (PDF, 83 MB)
Click here to find out more about previous MI5 releases.
Tags: exhibition, file release, mi5, MI5: Official Secrets, security service, spies