@Ian Fearnley That's interesting - DoC for when harm has occurred identified through a complaint process? If the complaint shares information about 'harm' (cautious here) and an incident is there no triage/comms between patient safety with content & a check to see if incident reported, outcome from that incident review which may well have been a 'investigation' with DoC enacted through investigation process - if no then the the complaint may require full review via the patient safety approach rather than a complaint response. Enactment of DoC is different to responding to complaints where you would always say sorry for the experience they have had - so are people getting muddled?
sorry if not clear