Complex sentence: There is no evidence, however, that Joseph Ratzinger Senior was ever arrested for anti-Nazi tendencies and he continued to serve in the police even after such events as the Night of the Long Knives and the passing of the Nuremburg Laws.
Split into simpler sentences: There is no evidence, however, that Joseph Ratzinger Senior was ever arrested for anti-Nazi tendencies. He continued to serve in the police after such events as the Night of the Long Knives and the passing of the Nuremburg Laws.