Sergeant Danny Nightingale's wife Sally has said she will continue to fight for her husband after the Court of Appeal judge ordered a retrial to take place against his conviction.
She told the assembled media outside the court in London: "If we have to go through it all again, we have to. We have to keep fighting."
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The move, which had been expected, was made on the recommendation of FBI disciplinary officials.
The voicemail left on a landline was not heard by a state DoT employee until Friday.
Officers were called to the house at 7.43pm on Friday, and a 35-year-old man was arrested on suspicion of murder two hours later.