I don't think I've ever seen this before. This item was posted on flightsim.com for download:
FS2004 (ACOF) - FS2004 Helicopters FS2004 Polizei Blau-Weis Bo-105
[ Download | View ]
Name: bo105polizeiblauweiss.zip Size: 3,026,970 Date: 04-10-2012
FS2004 Polizei Blau-Weis Bo-105. A blue and white police helicopter. Textures only, base model not specified. By Tobias Bernbeck.
As the text indicates, there is no base model specified, also, there is no readme and no FILE_ID.DIZ included. Somebody may recognize the Chopper and download it, but given the lack of info? Odd for flightsim too as they seem to look pretty close at the files that are uploaded, just seems like this one got by unnoticed.