http://www.nhnieuws.nl/nieuws/207931/Fietsendief-in-Amsterda...
The problem is that the police have other stuff to do, and they might as well be pissing in the wind with the amount of bike theft here. They could do a huge crackdown, but that's unsustainable and after the crackdown we'll be right back to the same theft rate.
Interestingly there was a case this year (currently going through appeals) where a judge ruled that a man stealing a bicycle in a residential neighborhood should be found not guilty because the police had created the circumstances of the bike's theft:
http://www.dutchnews.nl/news/archives/2016/01/decoy-bikes-sh...
It's unclear what that means for bicycle entrapment in general, but an article in Parool (again, in Dutch) suggested that this may have implications for the methods of the Amsterdam police depending on how it goes:
http://www.parool.nl/parool/nl/4/AMSTERDAM/article/detail/42...