An Aboriginal teenager remained a threat after police shot him three times, an expert witness has told Constable Zachary Rolfe's murder trial.
Rolfe, 30, has pleaded not guilty to murdering Kumanjayi Walker, 19, during a failed outback arrest on November 9, 2019.
He fired three shots into Mr Walker's back and torso after the teen stabbed him with a pair of scissors in Yuendumu, 290km northwest of Alice Springs.
