Does police do a lot of judge-shopping for warrants now?

Bill A3421-2013
Provides that applicant for a search warrant must disclose all prior denials of the same or similar application, as well as any prior failure to issue such a warrant by a different judge, if known to the applicant.


Of course, I wholeheartedly support such legislature as a criminal defense counsel.  It is interesting, how bad is the problem that it finally caught legislative attention?  Such information is usually not disclosed in discovery in criminal cases...