You are not a lawyer, if some one does it they aren&#x27;t forced to drive the car or jewelry back they might be sued for hiding assets in a civil court, this isn&#x27;t the government suing people, divorce isn&#x27;t a criminal procedure.
In any case Corporations aren&#x27;t people, and MSFT servers in Ireland probably belong to MSFT IE&#x2F;EU which is a separate legal entity (which is why MSFT can say we don&#x27;t have it).
There is also a difference between a warrant an, order and a subpoena in this case and 1000&#x27;s other issues that I also as some one who&#x27;s not a lawyer can&#x27;t even begin to imagine.<p>But you know who is a lawyer, MSFT&#x27;s head legal council and i hear he also got a bunch others with him so i would think they would figure out how to handle this.
But in general various agreements and treaties govern how law enforcement agencies and legal systems of different countries interact, some countries might accept a signed US court order (Canada for example), for others you will have to go through the extradition process codified in a treaty, and the list goes on and on and on.<p>*P.S. 
With several exception a court can&#x27;t compel you to do anything if you violate a Subpoena you will be found in contempt and maybe charged for that, and while you can call that compelling It&#x27;s not since the court will not actually force you to do anything.