The term "officer" applies to men who held the rank of District Inspector (class 1 or 2 or 3)
- Company Commanders were DI1 grade. There were 56 DI1s in the life of the ADRIC. Particularly the early Company Commanders were not very successful and left or were pushed out. 4 of these men were born in Ireland. 3 committed suicide and 2 were KIA in Ireland and another murdered in Palestine in 1923.
- Company 2nd in Command were DI2. There were 66 DI2s in the life of the ADRIC.5 of these men were born in Ireland.
- Intelligence Officers were DI3. There were 48 IO in the life of the ADRIC. 7 of these men were born in Ireland. 2 were murdered in Ireland, and 1 committed suicide
- Platoon Commanders were DI3. 153 men who held the rank of Platoon Commander. Of these only 8 were of Irish birth.