Nid dyblygu neu darfu ar waith ymchwilio gan gyrff eraill, megis yr Heddlu a’r Awdurdod Gweithredol Iechyd a Diogelwch, yw nod y protocol hwn.  Nid yw ynglŷn â rhoi bai ar neb chwaith. Ei nod yw sicrhau bod trefniadau’n bodoli pan fo angen casglu gwybodaeth ddigonol a chanfod, yn fuan yn y broses, y gwersi pwysig a allai wella diogelwch staff neu’r cyhoedd.
The aim of this protocol is not to duplicate or cut across investigatory work which may be undertaken by other bodies such as Police and HSE.  It is also not about apportioning blame, but is aimed at ensuring arrangements are in place to, when necessary, gather sufficient information and identify, at an early stage, important lessons which could improve staff or public safety.