https://www.deepdotweb.com/2016/01/23/bitcoin-playing-an-increased-role-in-crime-europol-says/Would you believe that the existence of bitcoin has increased the number of criminality in some countries in the world. This is the issue that was being thrown by the EuroPol and the UK Metropolitan Police. According to them bitcoin has played a huge role on the increasing criminality in their area. They added that a huge number of cybercriminals were using bitcoins in their activities.
This just shows that as bitcoin develops both advantages and disadvantages will tag along.
In terms of criminality in general, I believe there is no direct correlation between that and the existence or growth of Bitcoin. Criminality has always been present. There is direct correlation between human existence and criminality instead. That, we cannot deny. But if we specify crybercrime, then perhaps Bitcoin will have some role in there, but definitely not the factor causing its increase. Perhaps its role is a minor one. One of which may be is that cybercriminals choose to ask Bitcoin instead of fiat because of tracking issues.