Edward Heath would have been interviewed over seven allegations of child sexual abuse, police will reveal today.
But Wiltshire Police also found that other alleged victims may have made up their claims, evidence given by others was too inconsistent.
One allegation was even made from beyond the grave after the family of one unnamed man came forward after his death.
The force have spent £1.5million investigating sexual abuse allegations against Sir Edward, including £14,000 on spin to defend the controversial probe.
Ahead of the publication today of a report on the findings of the inquiry into claims against the former prime minister, Wiltshire Police were accused of a ‘colossal waste of money’.
The two-year investigation has ended with no one facing charges and seemingly no concrete proof that Sir Edward carried out the assaults of which he is accused.
The force has lavished £1,542,841 on the beleaguered investigation, according to the latest available figures, released after a Freedom of Information request.
Police have spent £1.5million investigating sexual abuse allegations against Sir Edward Heath, including £14,000 on spin to defend the controversial probe. He is pictured on his racing yacht Morning Cloud in 1975
This includes more than £14,291 on public relations to defend the reputation of Chief Constable Mike Veale and his team, who have faced sustained criticism for their handling of the investigation.
Over the past two years, detectives spent more than £34,542 on flights, car hire and public transport around Britain and the Channel Islands to investigate the child abuse claims, many of which have been found to be fantasy.
The force also had to pay £1,029 for vehicle repairs after crashing one of the hire cars they spent more than £22,000 renting during the inquiry, known as Operation Conifer.
The 24-strong investigative team racked up hotel bills totalling £32,757, plus £5,841 claimed back for meals and refreshments.
A further £556 was spent on books about the former Conservative MP, although officers failed to interview many of those who worked with Sir Edward and knew him best.
More than £914,000 went on salaries for retired detectives and staff working on the investigation, recruited after the force paid £4,819 for advertising.
A further £556 was spent on books about the former Conservative MP, although officers failed to interview many of those who worked with Sir Edward and knew him best
The final bill for the inquiry is likely to be even higher but the costs were still being counted last night before the publication of a summary of the findings today.
The report is expected to reveal that detectives examined claims of 42 assaults on youngsters aged 11 to 15 by the late MP between the 1950s and 1990s. Nine of the 42 allegations made against Sir Edward, who died aged 89 in 2005, had been on police files for years but were dismissed at the time.
It is anticipated that the report will say seven of the claims are sufficiently credible to justify police questioning Sir Edward under caution were he alive today.
But his godson Lincoln Seligman, 67, believes the report will contain nothing but ‘innuendo’ that will forever tarnish his godfather’s legacy.
Wiltshire Police plans to release a 100-page summary of the investigation’s work, as well as its final costs, and the full 350-page document will be passed to the Independent Inquiry into Child Sexual Abuse.
Home Secretary Amber Rudd has agreed to provide £1.1million in funding after a plea for financial support from Mr Veale to cover the costs of the inquiry.
Former Tory MP Harvey Proctor – who was himself hounded over false child abuse allegations by a fantasist known as ‘Nick’, who also made claims against Sir Edward – said: ‘I find it astonishing that this amount of money was spent on PR to protect the reputation of Mike Veale.’
Describing the investigation as ‘a carefully crafted witch hunt’, he added: ‘Operation Conifer could not and has not proved anything. It has been a £1.5million investigation into the sexuality or asexuality of a former prime minister.’
Dr Richard Hoskins, a criminologist called in by Wiltshire Police to review part of the inquiry, condemned the force’s spending, saying he was convinced there was not a shred of credible evidence against the late former Tory leader.
He said: ‘These items of expenditure show a total disregard for ordinary Britons who have paid their hard-earned taxes for this police gravy train.
‘It was obvious to anyone with half a brain that most of the so-called evidence against Heath didn’t stack up. The whole thing is a colossal waste of taxpayers’ money. There is no transparency, no sense of accountability.’