Earlier this month, my coworker Sean Hollister wrote about how Amazon, the maker of smart security systems and doorbells,
will in fact grant law enforcement warrantless access to customer footage in certain "emergency" circumstances.
According to Google and Amazon's US information request procedures, authorities will typically need to present a warrant in most situations.
While their policies may be similar, it appears that the two companies comply with these kinds of requests at drastically different rates.
We are permitted by the TOS to provide Nest data to authorities in the event of an ongoing emergency where doing so would be essential for solving the issue.
A corporation is legally permitted to share this kind of information with authorities if it determines that there is an emergency.