His intervention comes after a tribunal ruled on Wednesday that Dr Raj Mattu, a heart surgeon, was unfairly sacked by University Hospital of Coventry and Warwickshire NHS Trust in 2010, nine years after exposing the cases of two patients who died in crowded bays at the Walgrave Hospital in Coventry.

The tribunal ruled that Dr Mattu had been “subjected to many detriments by the Trust” because of his whistleblowing. The Trust ran up legal fees of £6m pursuing claims against him, and his solicitors said he had been “vilified, bullied and harassed out of a job he loved.”

Professor Jarman, director of influential hospital data analyst the Dr Foster Unit, said the case proved that “something must be done” about the treatment of whistle-blowers in the NHS, for the good of patient safety.

“It’s never really been properly solved. In the States you can get paid for whistleblowing. In the airline industry if you don’t report a problem within a certain period of time you get into trouble, and if you do, you’re considered to be doing a good thing,” he said. “We’ve reached the point where we’ve got to have something done…one would prefer a public inquiry where witnesses can be subpoenaed and must give evidence on oath.”

He added that all hospitals should appoint a board member responsible for whistle-blowing.

Mr Hunt has spoken out about the treatment of whistle-blowers in the NHS and recently wrote to all NHS trusts to remind them of their responsibility to allow staff to be honest and open about concerns over patient care.

A Department of Health spokesperson said Dr Mattu’s case highlighted “the vital importance of openness”