Although he has been considered for parole many times, 52 years later he is still serving the sentence because the Parole Board said he remained an undue risk to the safety of the community. In her decision issued from the High Court in Wellington Justice Mallon said that if Vincent had not been sentenced to preventive detention, he would have received no more than 10 years’ jail. “He has been refused parole at least 48 times, most recently on August 19, 2019. He is apparently New Zealand’s longest serving prisoner. “How can this be?” she asked. “I consider the process which ought to have enabled his release some time ago has miscarried. He no longer represents an undue risk to the safety of the community.”