Greek police has arrested a Greek-American woman for whom there was a European arrest warrant issued by the Spanish authorities for the offenses of fraud, criminal organization, forgery and money laundering.
The woman was arrested in Markopoulos village of eastern Attica on
According to judicial authorities of Spain she was a leading member of a criminal organization and had set up a large fraud ring in the country, while the gang was active also in several European countries including Greece.
The 61-year-old Greek-American woman took allegedly advantage of her dual Greek and American citizenship and set up together with her partners virtual companies with unknown activities in Spain.
They were presented themselves as executives of the non-existing businesses companies they set up, opened bank accounts in the USA, which they used in the frauds they committed not only in Spain.
With the bank cards obtained by the Greek-American woman, she made transactions in various countries (Greece, Spain, Denmark, Austria and Ukraine), from which she allegedly withdrew at least 2.1 million euros.

First of all, I do not make any excuse for this criminal behavior of this Greek woman. A criminal is a criminal and must be held responsible, but I want to ask a question.
My understanding is that Greece does not extradite its citizens to other countries for any reason. Only non-Greek citizens can be removed.
Is she going to be sent back to Spain for trial or is she going to be charged with crimes in Greece?
If it is crimes in Greece, this is completely understandable.
If it is crimes in Spain, by what cause can Greek authorities remove her from Greece?