It commonly is enabled by a bilateral or multilateral treaty. Some states will extradite and not using a treaty, but All those instances are uncommon.
A., contro la persona, contro la famiglia e tutela dei minori, https://barbarafhiv264705.blazingblog.com/29011628/5-simple-techniques-for-estradizione-e-assistenza-legale-ai-detenuti-avvocato-roma