"Police store and manage hundreds of thousands of files. Up until 2008 this was predominantly a paper-based system requiring significant storage capacity in multiple locations around New Zealand. Since 2008, files have been stored electronically and this has vastly improved the speed and efficiency with which staff can search for a file and access it.
"On any given day multiple files will be retrieved by staff for a variety of work relating to investigations, legal proceedings, reviews, audits, etc, and this occurs without issue. It is rare that a file would not be located, even given the magnitude of the system and the large number of historic paper files held by police."
Mr Loper said while it was "unfortunate" the file had not been found, police were satisfied there was sufficient information available to reconstruct the file in the unlikely event new information came to light.
"It should be noted that a trial was held in 1995, a review of the file was carried out in 1996, and police are not looking for anyone else in relation to this death."
Ms Horne could not be contacted by the Rotorua Daily Post yesterday.