Microsoft had a large amount of policy, and it could be that there were some policy that applied, but if there was some it didn't permeate the culture and daily

Microsoft had a large amount of policy, and it could be that there were some policy that applied, but if there was some it didn't permeate the culture and daily routine in the trenches there (from my personal and limited experience). Both backdoor requests I became privy to while there (2.5 years, circa 2011-2014) came from a certain US TLA, were law enforcement would have been an awkward step, though it seems reasonable to me that there were more requests, including from other organizations, but I was never made aware of those. There were some foreign spies caught in MSRC in the same timeframe. More of an extradite than a prosecute type situation, though.