extraditionnoun [ U ]
us/ˌek·strəˈdɪʃ·ən/the return of someone accused of a crime to the country where the crime was committed:
They have applied for his extradition to the United States.
extradite
verb [ T ] us/ˈek·strəˌdɑɪt/
One of the defendants fled to Egypt, which extradited him to the US.