the heelers enquiry into the wrongful diagnosis of 200 people with cervical cancer in ireland which informed them they didn't have the disease when in fact they did

The only question that needs to be asked and answered is the question as to the identity of the individual or individuals who signed off on each test slide reading, falsely informing each of the  200 women that they did not have cancer.
Identifying the laboratory alone which carried out the tests, merely facilitates the usual evasions standard to Irish medical scandals and their resultant enquiries, ie: "Oh we outsourced the test to another laboratory which has since gone out of business," or "We don't do business with that laboratory anymore," or "This is a systems failure."
The individual who signed off on each wrongly diagnosed test slide must be identified whether in America or Ireland.
This must be done in order to establish whether the individual gave an incorrect reading of the slide because slides can easily be misinterpreted, or because he is incompetent, or because he is a murderer.
This should be a criminal enquiry.
That is all.