Maybe subterfuge? Have a fake, front-end desktop environment for those pesky inspectors. But the real data is hidden away only findable after certain keystrokes and innocuous-looking codes are entered. I'm surprised no one has thought of this. Even simpler: have a second drive that holds only data hidden away in your laptop. You activate the connection with a hidden, physical switch. If they ask where the D: drive is, just say, oh that's an external drive I use at work. Or, that's the network drive at work.