Patient A, who had stage three prostate cancer, said in evidence Ali “laughed” on the phone and added prostate cancer was “easy to cure”.

The sessions, the tribunal heard, were conducted at Ali’s semi‑detached property – described by Patient A’s wife as looking “like a council house” – and at times featured ozone therapy, a controversial alternative medical practice.

A Public Health England (PHE) inspection found the property had a “number of visibly contaminated items surfaces and areas”.

It added there was a “lack of material to suggest that basic infection prevention precautions were being taken”, and there was evidence “equipment was reused without decontamination”.

The property was described as a shared residential and clinical space with “little to no differentiation between the two”, which was “dirty and unhygienic”.

Patient B – who had terminal ovarian cancer – died shortly after she stopped treatment with Ali but before the PHE and police investigations.

Her husband, described as Mr E, said they were told by NHS medics there was nothing else they could do, but Ali disputed that and claimed he could “cure her cancer”.

The hearing was told Ali said to Patient B that “chemotherapy did not work” and instead of curing people, “the NHS was killing them, and the big pharma companies were making money”.

The tribunal found Ali “failed to obtain informed consent” from Patient B through the vitamin C, oxygenated water, sodium bicarbonate and ozone therapy treatments.

An expert witness said no studies or clinical data suggested any of the treatments described given to the patients could cure any type of cancer.