Human trafficking, woman and children, in Indonesia keep growing and continuously happened. The fast growing figure can be saw since many case handled by Direktorat I Unit Ill Keamanan/Trans Nasional People Smuggling and Trafficking bareskrim Mabes Polri during year 2000-2005.Modus operandi, as a method of crime known from cases handled, always change following the situation and condition of transportation and regulation. In this thesis, writer try to explore any method or modus operandi use by the offender to committed their crime. 5 cases are take to be analyze in this thesis. All cases has similarity and same characteristic base on offender, victim and it crime profile. All leads to kind of transnational organize crime.Research method use in this research is qualitative approach. Which conducted by doing documentation gathering, interview and observation to the research object which is Bareskrim Mabes Polri. What became the object of research is how Polri handle all case which categorize to trafficking activity.At the conclusion, this research see that trafficking conduct with many method and modus operandi. Each case has unique and different character. That make even Police should be more careful when dealing with such case since many aspect are need to be consider in handling it. Many factors might influence the process of cases handling by the police. One of the major factor is regulation it self. Presently there still no regulation defining trafficking as a crime. Even Trafficking law it self is still under legislation process and yet to be use as a prosecution law. That is why this paper like to recommend to government and DPR to approve the trafficking law as soon as possible.