By far, whether the conducts like drug dealings or international terrorist acts can be directly defined as international crimes without the enactment in domestic system to ensure their culpability has not yet reached consensus under international law among scholars. Perhaps it is because that the definition of human trafficking in terms of international law is lacking and the uncertainty still exists regarding whether those acts can be governed by contemporary international law. However, although a variety of ways of conduct with regards to human trafficking indeed exist, there are still certain identical elements can be the basis of its general definition. Concerning the human trafficking, what matters is that the victims are compelled to leave the society and the cultural where they get used to; thus, the key factor is the location that has been changed instead of the borders where they've trespassed.Moreover, according to U.S. Trafficking in Persons Report, Taiwan was defined as ”a source, hub, and destination of human trafficking for sex exploitations and forced labors” in 2004. ”Taiwan is an importing nation of women trafficking for sex exploitation, most of the victims are coming from China, others are from Thailand, Cambodia or Vietnam. Those victims were deceived by the reasons of getting marriage or becoming labor in Taiwan. Further, according to the report, there are some Taiwanese women sent to Japan for prostitution in 2005.” Taiwan had not been aware of the seriousness of the crime against human trafficking until 2006. Not until in 2009 Taiwan's domestic law has matched up with the international standards after the ”Act against human trafficking” enacted by the Congress.