Sure, I get how it works, but I feel like false positives are inevitable with this approach. That wouldn't necessarily be an issue under normal police circumstances where they have a warrant and a real person reviews things, but it feels really dangerous here. As I mentioned, any accusations along these lines have a habit of sticking, regardless of reality - indeed, irrational FUD around the Big Three (terrorism, paedophilia and organised crime) is the only reason Apple are getting a pass for this.