The man accused of stabbing a west Auckland dairy owner disabled his electronic monitoring bracelet more than 90 minutes before the attack, but Corrections did nothing.
It got an alert but didn't take immediate action because it says it was dealing with thousands of alerts that day.
Twenty-four-year-old Mitchell Lam had been on electronically monitored bail for months - he died in police custody after the attack, which left the New Windsor shop owner critically injured.
Lucy Xia reports.
