Cart before horse again?
The knowledge gap is there because police agencies have no interest in expanding into internet fraud and scams.
Can't blame them really given the concentration of resources on anti-terrorism, chasing high media profile stuff (no matter how ephemeral those issues are in real crime terms), and the reluctance of the financial sector to admit that crime is even possible in their brave new world.
Only in a policing 2.0 world would user generated drivel count as "knowledge".