| Chief Inspector : Harold, Sir Roberts. |
| Deputy Chief Inspector : A. Rogers. |
| Deputy Chief Inspector : H. R. Houston. |
| Deputy Chief Inspector for Special Development Duties : Dr. A. Winstanley. |
| Principal Medical Inspector : J. M. Davidson. |
| Principal Inspector for Special Development Duties : W. H. N. Carter. |
| Senior Inspector for Special Development Duties : (Vacant) . |
| Inspector for Special Development Duties : (Vacant) . |
| Principal Electrical Inspector : J. Cowan. |
| Deputy Principal Electrical Inspector : H. Rainford. |
| Senior Electrical Inspector : R. Dobson. |
| Principal Inspector of Mechanical Engineering : A. E. Crook. |
| Deputy Principal Inspector of Mechanical Engineering : S. J. Ayres. |
| Senior Inspector of Mechanical Engineering : T. K. Clanzy. |