There is a difference between having mai extradition treaty and not extraditing a citizen. Having an extradition treaty means that there is an established way to hand over criminals/suspects to a country requesting extradition. The mechanism is clear and all the rules about the process are transparent. International warrants: Extradition https://livebackpage.com/story3928463/nuovo-step-by-step-map-per-english-speaking-lawyer-madrid