Alfie, there is no head of NPAS, perse. OD and his counterpart, the supt answer to the C.C of the parent police force when it is all agreed (from an AOC perspective and then NPAS as an entity will go. The 'system' also answers to a management group consisting of reps across the board including a rep from the 'old police authority system'.
Has the parent police force been selected and established yet - anyone?