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. The questions https://guidemysocial.com/story3903307/5-semplici-dichiarazioni-circa-no-extradition-countries-with-us-explained