The findings of an independent inquiry into a scandal-hit NHS hospital are set to be made public.
The probe was launched into events at Stafford Hospital after a damning report last March from the Healthcare Commission revealed a catalogue of failings at Mid Staffordshire NHS Foundation Trust, which also runs Cannock Chase Hospital.
Appalling standards of care put many patients at risk, and between 400 and 1,200 more people died than would have been expected in a three-year period from 2005 to 2008, the commission found.
The report made headlines, with families describing shocking conditions in which some patients drank water from vases because they were so thirsty and others were left screaming in pain.
The commission reported that there were deficiencies at "virtually every stage", including inadequately trained staff who were too few in number, junior doctors left alone in charge at night and dirty wards and bathrooms.
The investigation found heart monitors were turned off on wards because nurses did not know how to use them and some patients were left dehydrated because nurses did not know how to work intravenous fluid systems properly.
The commission concluded that the trust's board was more focused on finance, targets and achieving foundation trust status, as well as its desire to save £10 million.
In July last year, four months after the publication of the commission's report, Health Secretary Andy Burnham announced a second inquiry would be launched to ensure "lessons are learned".
The chairman of the inquiry, Robert Francis QC, a specialist in medical legal issues, will deliver the findings of the two-month probe to gathered relatives and media in Staffordshire.
The final report was handed to Mr Burnham last month. He will make a statement on the findings in the House of Commons later.