For several years now, German police has staged a speed trap marathon in spring. For 24 hours (or in the case of Bavaria, a full week) they would man every speed trap, radar gun etc. and go beserk. They say that this isn’t for revenue but to boost road safety and awareness of the dangers of speeding and so on. Hard to believe I know, but they also released all their control points beforehand via the internet, so if you got caught (like I did 2 years ago) it really was your own stupidity.
Well not 2016. Due to the sheer number of refugees arriving in Germany each day, they will skip this one.