Police are investigating a handwritten list of contact details relating to firearms licence holders from the lower North Island.
The list with details for 20 people was discovered when Police responded to an incident involving people unlawfully on a property in Wellington last Monday.
It has since been determined the list of names relates to firearms licence holders in several locations across two different police districts.
“We have also determined the list was not sourced from Police records which have been reviewed, and some of the detail is outdated and does not match current firearms records,” police said in a statement this afternoon.
The Firearms Safety Authority, Te Tari Pūreke, was alerted on Friday.