One of the areas of inadmissibility, listed at the top on the U.S. Department of State website is called "Crimes of Moral Turpitude".
So, what does it mean and what are its repercussions? Well, it includes crimes like trafficking (drugs and human), possession of controlled drugs, money laundering, etc. As far as the fallout is concerned it is a lot of major work to obtain a waiver for these offences. Individuals need to understand that the convictions in the above mentioned crime categories are frowned upon by CBP. Fortunately, we have the experience to help you.