It's interesting how in most eastern European countries, most cars have dash-cams - Live Leak would be nothing without all the Russian dash cam video. Also see this VG map: http://virtualglobetrotting.com/map/fatality-on-the-highway/ and my personal photo.
Sure, I assumed that it was police corruption / insurence fraud reasons. I am suprised it's not more popular here in the United States where there is indeed police coruption and insurence fraud.
http://en.wikipedia.org/wiki/Dashcam