PremiumOpinionRichard Prebble is a former Labour Party minister and Act Party leader.

‌The number of ram raids has fallen sharply in the last few years. Photo / Anna HeathThe number of ram raids has fallen sharply in the last few years. Photo / Anna HeathOfficials are mystified. What has caused the dramatic fall in juvenile crime?Official statistics record youth offending down about 20%. A senior civil servant told me he believes that the reduction could be even higher.Measuring the amount of juvenile crime is notoriously difficult.

Most offending is dealt with by