Undoubtedly Intelligence was the most dangerous place to be in Ireland. I doubt that the record will ever be complete. Many of the documents are still secret, and Basil Thompson in particular was very good at removing all clues on an agent.
| 1920 Mar 24 | Private B F Molloy | A man with no past, Intelligence | Intelligence | CWGC |
| 1920 Mar 24 | Lt F A C Howells | Could be Molloy | Worcs Regt | CWGC |
| 1920 Jul 27 | L/Cpl T Maddox | Killed on an intelligence operation in Cork. | Essex | CWGC |
| 1920 Oct 12 | Major G O S Smyth | Carolan Raid Intelligence | Intelligence | CWGC |
| Capt A P White | Carolan Raid Intelligence | Intelligence | CWGC | |
| 1920 Oct 14 | Lt G A Price | Shot in Dublin. Intelligence Officer | Intelligence | CWGC |
| 1920 Oct 27 | Capt P R Bowen | Uncover agent shot on the street in Dublin | Intelligence | No |
| 1920 Nov 4 | Lt H J Hambleton | Shot near Nenagh - Intelligence Officer | Northampton Regt | CWGC |
| 1920 Nov 15 | Captain M. H W Green | Waterfall Certainly believed Intelligence by IRA | Lincolnshire Regt | No |
| Captain S Chambers | Waterfall Certainly believed Intelligence by IRA | King's Liverpool | CWGC | |
| Lt W S Watts | Waterfall Certainly believed Intelligence by IRA | Royal Engineers | CWGC | |
| 1920 Nov 21 | Lt Peter Ashmun Ames | Bloody Sunday | Intelligence | CWGC |
| 1920 Nov 21 | Lt Henry Angliss DCM | Bloody Sunday | Intelligence | CWGC |
| 1920 Nov 21 | Lt George Bennett, | Bloody Sunday | Intelligence | CWGC |
| 1920 Nov 21 | Major C M C Dowling | Bloody Sunday | Intelligence | CWGC |
| 1920 Nov 21 | Lt D L MacLean | Bloody Sunday | Intelligence | CWGC |
| 1920 Nov 21 | Captain L Price MC | Bloody Sunday | Intelligence | CWGC |
| 1920 Nov 21 | Captain G T Baggallay | Bloody Sunday | Courts Martial | CWGC |
| 1920 Nov 21 | Captain W F Newberry | Bloody Sunday | Courts Martial | CWGC |
| 1920 Nov 21 | Lt H E Spenle | Suicide | Winters Office | no |
| 1920 Nov 21 | Capt J Thompson | Intelligence Officer. Ambushed near Cork | Manchester Regt | CWGC |
| 1921 Feb 5 | L/C J M Ryan, | Intelligence man shot Dublin | Intelligence | CWGC |
| 1921 Mar 29 | Captain C H F Lees, | Shot on the street in Dublin | Intelligence | CWGC |
| 1921 Apr 22 | Pte V L Belabre | Accidental (he could be Intelligence) | R C of Signals | CWGC |
| 1921 May 17 | ? Un-named | Un-named suicide in Winter's Office, Sturgis | Intelligence | ? |
| 1921 May 18 | Cpl P Dunney | Shot Dublin | Intelligence? | No |
| 1921 May 18 | Major A.R. B.Savage | Drink problem | Intelligence | CWGC |
| 1921 May 24 | Lt S L Vincent | Disappeared Fermoy, body exhumed 1926 | Intelligence | CWGC |
| 1921 Aug 8 | F W Morrison | Suicide by drowning | Intelligence | |
| 1922 Feb 15 | Lt H M Genochio | Abducted and shot in Cork | Intelligence | n/a |
| 1922 Apr 26 | Lt G R A Dove | Kilgobnet killings | Intelligence | |
| 1922 Apr 26 | Lt R A Hendy | Kilgobnet killings | Intelligence | |
| 1922 Apr 26 | Lt K R Henderson | Kilgobnet killings | Intelligence | |