economic sanction from pout of uiew of international law with emphasis on international economic law right of development

the development of international law has obliged the states to observe the principles and customs of international law in their intenational relations. economic sanction is the one of them. it is used as a political tool but discussed as an legal issue among the international law issue. there are three approcch on this issue ( economic sanction) first strict legality approach second relative legality and the third is non-legality approach. although the security council has tried to develop the relative legality approach but the intenational economic law and righ of developmet intenational law prefer to support the non-legality approach.