Gees, there’s quite a lot to try and unpick there. To attempt to get started without this immediately becoming inflamed:I would be surprised if the NHS had relevant regulation, an ability to enforce accountability, or oversight of possible fraud.
When my father was in ICU (years ago) the lead consultant made a clinical decision to withdraw treatment with DNR on the basis he had, with no witnesses, inflicted on my father sufficient pain to be sure there was no response.
I complained, naturally, and then went to the bed. I showed the nurse how to get a response without inflicting pain, and was too late because the consultant had left the building - the nurses had no power to override a doctor's decision. The nurse went ahead and switched off the treatment after witnessing a response - like a gentle but fanatical military guard.
The only thing that had changed from one day to the next, as far as I can gather, is that the NHS had obtained without witnesses my father's signature for the DNR and probably more - presumably just before he became (subjectively) unresponsive?!
I cannot accept an organised hierarchy following orders can be defended as overworked or poorly trained. This is one of many bad experiences that informs my overall opinion of the NHS.
What response were you able to elicit in your father?
What organ support was he on? Ventilator, dialysis (or equivalent kidney replacement), blood pressure support?
Was he sedated?
Regarding your “father’s signature” on the “DNR” — did you see this? I ask because I’ve never come across a form that has a place for the patient to sign.