Seven people escaped isolation, including four who fled Rydges Hotel in Auckland on May 10 - which does not appear to have been reported publicly.
The four people were later found at a relative's house.
After weighing up the health risks, no charges were laid but those involved were warned and educated.
The Ministry of Health ran mobile testing of people they had been in contact with while away from isolation.
In a briefing to the Police Minister on June 22, obtained under the Official Information Act, it said the quarantine and managed isolation operation, dubbed Operation Mercy, was run by the ministry and Defence Force, not police.
But police did help track down and return people to isolation when asked to.
The report said "all of the cases were resolved successfully by the agencies involved".