A US based criminologist has told the committal hearing of NT police constable Zachary Rolfe that two of the three shots fired at Yuendumu teenager Kumanjayi Walker were "excessive, unreasonable and unnecessary.”
Constable Zachary Rolfe was a member of the Alice Springs-based Immediate Response Team called to Yuendumu to assist with the arrest of Kumanjayi Walker.
Dr Geoffrey Alpert, a criminologist and sociologist told the court he was an "expert in officer-involved shootings" and had evaluated "hundreds and hundreds" of them.
Dr Alpert said "Had Rolfe fired two shots in the beginning after he had been stabbed instead of one shot … he would've been satisfied," but he believed the second and third shots fired at Kumanjayi Walker were "unnecessary".
The committal hearing finished early on Thursday after Rolfe’s barrister, requested judge John Birch adjourn the case until September 25 when he will argue his client has no case to answer and the charge should be dismissed.
Judge John Birch will decide if there is enough evidence for Mr Rolfe to be put on trial in the Supreme Court after September 25.