Personal medical details were among a series of documents blown from a Christchurch City Council carpark into the streets below.
A member of the public, who did not want to be named, alerted Radio New Zealand to the documents flying from the seventh floor of the earthquake-damaged Lichfield Street car park building on Thursday afternoon.
The person also handed over a bag of the documents to Radio New Zealand. They included traffic infringement notices containing names, dates of birth and addresses
The council says parking ticket documents dating back to 2000 had been locked up awaiting destruction, but it looked as though boxes were forced open.
Facilities and infrastructure director David Adamson said medical details were included in replies to the parking tickets, because some people were putting arguments about whether they should have to pay. Mr Adamson said the site was now secure.