Countries’ Police Cooperation to Improve the Effectiveness of the Fight against Crime in the Light of International Documents

One of the important examples of the applicable of sovereignty by any country is the fight against crime and the application of punishment. In this regard, and in the position of the plan of each country, relying on its capabilities and in accordance with the internal regulations, it will deal with crime. However, effective confrontation with these types of crimes due to the increase of crimes and the transnationalization of some of them, requires close cooperation between governments. Hence, judicial assistance and mutual legal cooperation between countries that have existed for a long time in various fields. By the enactment of 1988 convention against illicit traffic in narcotic drugs and psychotropic substances, the terrorist financing convention in 1999, the Palermo convention against organized crimes, especially the 2003 convention of Merida against corruption, has been defined as an international treaty of member states. Special inquiries techniques such as supervised transport and delivery control, inside or confidential inquiry, and the creation of a joint inquiry team are the most important of these cooperation, carried out in the light of international documents and treaties by the institution of criminal justice administrators. In this article, it has been tried to examine the new methods of cooperation of the police of some countries in these fields by examining the international and regional documents and national regulations of some countries.