The family of Henry Kaminski, 62, had believed the ambulance staff treating him were hampered by a failure in the defribrillator.

But, six months on, an official report has concluded the paramedic and two technicians were simply not properly trained to use the equipment.

Mr Kaminski's daughter Michelle Peters, 40, of Nutwick Road, Denvilles, Havant, said: 'You put your faith in them as trained paramedics to go and help people and save lives but if they are not trained on the equipment then they are just bystanders.

'What is the point of them going out in the first place?'

Mechanic Mr Kaminski collapsed on December 17 at his workplace A&H Auto Repairs in Lavant, near Chichester, and a rapid response vehicle and an ambulance, from South East Coast Ambulance Service NHS Trust, were sent to the scene.

Following his death an official investigation was started into the equipment failure.

A report concluded the incident was the result of the staff 'having a lack of familiarity with the equipment'.

Since the incident, the NHS Trust has carried out a review and all staff now have access to a training defibrillator.

A statement said: 'The trust has taken this matter very seriously and an investigation into the incident was conducted.

'It was established that the cause of the problem may have been due to the member of staff having a lack of familiarisation with the new defibrillator.'

The trust offered its 'sincere condolences' to the family of Mr Kaminski.