International law is derived primarily from two sources: international agreements and customary international practice. International Agreements are the formal agreements between cooperating nations that delineate respective commitments and responsibilities.United States representative to INTERPOL. Safety, a 25 member college police organization in the city of Lancaster. I have served the law enforcement profession for the last 46 years. States and globally—must reorient itself to this new reality. President Barack Obama joins members of the President's Task Force on 21st Century Policing for a group photo in the Oval Office, March 2, 2015. Inmajorinternationallawenforcementoperation. Additionally, cooperation with neighboring countries increases border safety and law enforcement efforts.