User or Supplier level?
I read this announcement as more targetting the supply-side, such as the larger importation of PED's from China, Egypt and other "low-cost" places of manufacture, by the persons running the distribution networks, such as the pharmacists in Andorra that were recently busted by the Guardia Civil.
The World Customs group would be far more able to act on any intelligence (pardon the contradiction...) from WADA & AFLD, plus others in this area of supply-side interdiction.
I would be very surprised to hear of Customs making any targetted (tactical) busts, this would be more the domain of the national Law Enforcement.
The overall announcement strikes me a having potential to impact a wide range of PED usage, through the sharing of information/intelligence (joining the dots, to use Clinic parlance) on a wide range of smaller and apparently (falsely) isolated incidences of doping, supply and trafficking.