There is a difference between having voto negativo 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. For non-citizens, https://bookmarkleader.com/story18554689/5-elementi-essenziali-per-skilled-english-speaking-legal-advisor