I want to know the answer to the following question:
Napoleon's decision to reinstate what practice in France's overseas colonies has caused controversy regarding his reputation?
All the background I'm provided with is that "His critics charge that he was not significantly troubled when faced with the prospect of war and death for thousands, turned his search for undisputed rule into a series of conflicts throughout Europe and ignored treaties and conventions alike.". Is that enough to answer the question?
Answer: no