Complex sentence: The Chief of Police in the Protectorate, Friedrich Sowa, was sentenced to 10 years for crimes that included extermination of Romanies, the decision was later overturned, (since he acting on Himmler's orders), and he was expelled from the country.
Split into simpler sentences: The Chief of Police in the Protectorate, Friedrich Sowa, was sentenced to 10 years for crimes that included extermination of Romani. The decision was later overturned, since he acting on Himmler's orders, and he was expelled from the country.