Clayton Williams, 18, has "accepted that his actions and his driving caused the death" of Pc Dave Phillips, according to his lawyer.
In a statement issued by Williams his legal representative said the teenager had "extended his apologies" to the officer's family following the death of the father-of-two but stated "he did not drive at the officer and that he did not intend to injure, let alone kill him".
Williams, who has been charged with the murder of Pc Phillips, has not yet entered a guilty plea to any of the charges against him but took the unusual step of issuing a statement after a short hearing in court today.
The statement read:
The detected return of the Ebola infection in British nurse Pauline Cafferkey is "unusual", according to an expert in the field of virus research.
Dr Derek Gatherer, a lecturer at Lancaster University, said traces of the virus could remain in certain bodily fluids for months after recovery but said it was "unusual for the virus to be detected again" in someone who had already overcome the disease.
London's Royal Free Hospital, where Cafferkey is being treated, has said the nurse had been readmitted "due to an unusual late complication of her previous infection".