Although, there are so many factors facilitating the increase in the rate of crime in our society but if we critically deepdown on the root of incessant increase of crime and other criminal activities in our society today it will be so notable that poverty and unemployment especially among the youth are the major anchor to the increase in crime and criminal activities in the society. I think if there is adequate sentization of Bitcoin in our society it will help in the reduction of crime because many people that are involve in some fraudulent activities today would venture into Bitcoin and be making a reasoning resource from Bitcoin if really inconcated with the actually knowledge and information to be successful in the system.
I don't really understand what you mean by "can bitcoin can help to reduce crime"? You are asking a question yet you arre also directly answering machine yourself that bitcoin helps to reduce crime. What if I tell you that bitcoin does not help to reduce crime. As far as I know Bitcoin is a digital gold which it's value is equivalent to money like fiat, meaning you must have to buy it with your money or earn it from some site as a kind or reward just like signature campaign which we do here, but that does not implies that it's a free money that will help to reduce crime. Bitcoin is an digital asset and requires people to buy and HODl for a specific period of time depending on the person in question. Or can be used for trading in a short period of time and be making profit, but that does not mean it will reduce crime. Because even people who invented in bitcoin are still criminal because bitcoin doesn't give them what they wanted at a spot. So in summary bitcoin does not reduce crime. If what you mean is that those who engage in signature campaign may likely not participate in criminal Activites, it is understandable because it has reduced unemployment at some point.