In recent years, with the increasing attention given to various forms of international crime, comparative criminology has become a major field of criminology and criminal justice (Bennett, 2004: 2). Comparative criminology is important for the definition and implementation of international policies and preventive measures against international crime; there are therefore a growing number of studies on crime and control on a transnational scale. Therefore, in this essay, the first part will examine how violations of international laws pose a direct threat to Western countries, and then the understanding of these threats and the justice of perpetrators of international crimes will be examined in relation to comparative criminology in the second. and the third part with an illustration of various international data. First, violations of international law generally refer to the violation of human rights. Human rights is a complex area in international theory and practice. It is considered international human rights law in its legal manifestation (Cali, 2010: 282). The International Law Commission defines the concept that crime against humanity undermines peace and security (Cali, 2010: 282). Since the mid-19th century, the notion of international law has existed. It covers citizens of all states and countries around the world. It is a notion created by treaties of the United Nations and regional organizations (Philip, 2013: 690). Since 1945, international human rights law has existed in Article 1 of the United Nations Charter. It states that human rights are promoted and encouraged for fundamental freedoms for all regardless of race, gender, language and religion (Cali, 2010: 284). Human rights are one of the goals of the United Nations alongside...... middle of paper ......o social stability as the American system of values ​​and beliefs of land of the free is threatened (Morawska, 2007: 94). Additionally, she says the U.S. economy is at risk as the U.S. government must spend more to combat human trafficking. In the United States, the State Department's Office to Monitor spent $300 million on a modern slavery funding program, representing well over $20 million of the original budget (State Department of the United States, 2014). Additionally, in Australia, the Australian Government has spent over $50 million on the Australia-Asia Anti-Trafficking in Persons Program (AAPTIP) since 2003 (Australian Government, 2014). As a result, comparative criminology is believed to provide a better understanding of how and at what level different nations are threatened by certain transnational crimes...