This report is currently with government agencies for review.
The Law Commission appears to disagree with Police on lowering thresholds just for Arms Act offences:
The Kiwi Gun Blog objects to innocent shooters becoming entrapped in nonsense persecutions. Again. This nonsense is only even considered because we don’t KEEP the offenders that we have already found behind bars.
Lets enforce our existing laws before we target shooters with new intrusions.