How can human trafficking of migrants be stopped?

If a country functions according to the system where rule of law is being complied with by all state bodies, it is easier to stop human trafficking than otherwise because in this case the probability of involving local and border migrant services in human trafficking is low. However, only a few countries have managed to achieve success to this end. More often than otherwise we nowadays here about new scandals involving bribery of migrant services in CEE in order to cover for and participate in a profit-share of migrant human trafficking. In addition to that economic condition in a country, its unemployment rate and ability to provide decent social services to its own unemployed population would also favor illegal migrants' integration and accommodation or otherwise.