This is known as the principle of complementarity.
On the basis of the principle of complementarity, a case in The Hague is and should be only a matter of last resort.
Tang, J. S., Li, Y. L., Li, C. F. & Guo, G. C. Revisiting Bohr's principle of complementarity using a quantum device.
Second, we utilized the principle of complementarity to prioritize new sites to augment the Atlantic Forest's existing reserves.
Threatened species are dependent on conservation, with strategic approaches underpinned by the principle of complementarity to find efficient solutions.
In 1927, the year that Heisenberg announced his "uncertainty principle," Niels Bohr also described the "principle of complementarity" for quantum systems: for every measurable quantity there exists a "complementary" measurable quantity.
"Therefore, the judges concluded that the case is inadmissible before the court, in accordance with the principle of complementarity enshrined in the Rome Statute, founding treaty of the ICC".
Vogel also pointed out that, on the principle of complementarity, the ICC prosecutors would have to demonstrate that the US was unwilling or unable to prosecute the abuses itself.
This principle of "complementarity" acknowledges the primary responsibility of the national authorities in providing accountability for international crimes allegedly committed by the Gaddafi regime and the National Transitional Council (NTC) beyond those indicted by the ICC.
Under the "principle of complementarity", it may try someone only if their own country is genuinely unable or unwilling to do so.
