Police, prisons and spy agencies missed chances to direct the LynnMall terror attacker away from violent extremism.
That is among the 'significant deficiencies' found in a weighty review out today into the handling of Ahamed Samsudeen, a refugee who was locked up awaiting trial for about four years before injuring eight people in a stabbing frenzy in a supermarket in September last year shortly after his release from prison.
He was then shot dead by the nearby surveillance team which followed him 24/7.
RNZ reporter Phil Pennington spoke to Māni Dunlop.