body: So, say someone commits murder in state A, then flees to state B. State A requests the extradition of the murderer.
  
  
  Does state B, in lack of any treaties governing the subject, by the power of customary international law owe any obligation to state A to extradite the murderer? Can they deny it? Can they just omit the extradition and not do anything?
  
  
  
title: Is the extradition of a person a discretional choice of a state?