There exists a law that prevents people, particularly under-aged females, from being victims of prostitution or other sexual crimes. This law provides the illegality of transporting people from one place to another for the purpose of immoral sex or prostitution. The Mann Act addressed the issue of prostitution, human trafficking, and immorality, making such acts a felony under the jurisdiction of US law.
The Mann Act was named after James Robert Mann, a member of the US Congress as a representative of the state of Illinois. Also known as the White-Slave Traffic Act of 1910, the Mann Act responded to allegations that Chicago was becoming a haven for white women who were imported into the state and forced into committing sexual activities. This piece of legislation was drafted in 1909 by James Robert Mann, and it was signed into a law by then President Taft in 1910.
Interstate commerce was growing during this period of US history, but some of it involved acts of debauchery, immorality, and human trafficking. Because the US government, especially Congress, could not dictate or determine what kind sexual behavior people must observe, it addressed the issue of transporting individuals, which could be regulated by laws enacted.
When the Mann Act was first signed into a law, most of the language used in the law was ambiguous and imprecise. Thus, over the years, amendments have been made to clarify what constitutes a criminal act. Such amendments have also involved the inclusion of child pornography as a felony.