Fine. Go ahead and draft a law governing the sale of publicly-traded securities, if it is so easy.
I would think you would want to ask someone that has knowledge of securities, how about asking people in the securities business to write them themselves? Why doesn't stealing cover this? If someone swindles someone out of money, it is stealing, they serve time in jail. No passing the buck, no excuses. If they honestly tried to invest monies and the money was lost, no crime.