Explanation:
Rodrigues’ argument is based on several points. First of all, the trade in illegal drugs is very lucrative because it is illegal. The experience of past decades proves that the ban does not eliminate demand. People keep buying drugs. Selling the substances is risky, however, so those who supply the drugs command higher prices. The huge profit margins, in turn, mean that the market is contested, but competition is not simply about prices. Instead, gangs resort to violence to monopolise the business in certain areas. Their brutality serves to intimidate adversaries as well as anyone who might oppose them.
