The news was welcomed yesterday by Attorney-General Lara Giddings and Greens leader Nick McKim, who said their proposed new laws to legalise euthanasia would end confusion for police, doctors and families.
Voluntary euthanasia advocate and Melbourne doctor Rodney Syme was investigated by Tasmania Police over the death of Allens Rivulet man Rob Cordover.
Mr Cordover, also a passionate supporter of euthanasia, died surrounded by his family in June last year after a nine-month battle with motor neurone disease.
Dr Syme admitted helping Mr Cordover to take his life by giving him advice and medication.
His admissions to the Mercury last year prompted Kingston detective Scott Kregor to travel to Melbourne to interview Dr Syme.
But Det Sgt Kregor told the Mercury last week he would not be taking further action.
Dr Syme said that was the first confirmation he had received that he would not be charged.