He has published and lectured on the federal racketeering laws, sentencing, plea bargaining and other aspects of criminal law, constitutional theory, and legal ethics.
It is a loose association of criminal groups that share a common organizational structure and code of conduct, and whose common enterprise is protection racketeering.
Using the matatus as a springboard, the group moved into other areas of commerce, such as rubbish collection, construction, and even protection racketeering.