Sounds like this question does not pertain to US immigration law but instead deals with criminal law in a foreign country perhaps you should consult with a lawyer licensed in that country
I would suggest asking an attorney in Holland, as I would imagine most attorneys here in the United States have no understanding, myself included, of the judicial system or the time standards for criminal proceedings in Holland.
I wish your friend the very best of luck.
Very truly yours,
Anthony Rao, Esq.