The U.S. Government defines human trafficking as:
Sex trafficking in which a commercial sex act is induced by force, fraud, or coercion, or in which the person induced to perform such act has not attained 18 years of age.
The recruitment, harboring, transportation, provision, or obtaining of a person for labor or services, through the use of force, fraud, or coercion for the purpose of subjection to involuntary servitude, peonage, debt bondage, or slavery. (Trafficking Victims Protection Act).
The United Nations defines human trafficking:
Trafficking in human beings is the recruitment, transportation, transfer, harboring, or receipts of persons, by means of threat or the use of force or other forms of coercion, of abduction, of fraud, of deception, of the abuse of power or of a position of vulnerability or of the giving or receiving of payments or benefits to achieve the consent of a person having control over another, for the purpose of exploitation.