Why is the burden of proof on the resellers to show that the devices have not been stolen? Imagine if any other product worked this way. Trying to sell a classi

Why is the burden of proof on the resellers to show that the devices have not been stolen? Imagine if any other product worked this way. Trying to sell a classic guitar? Can't show a paper trail proving continuous legal ownership back to the manufacturer? The cops show up and throw it on a bonfire. Now imagine that it's not even the cops, but private security hired by the manufacturer, following nothing more than the manufacturer's own policy. Oh, and the manufacturer naturally has all the paperwork of all the past owners - they made sure of that with this policy - but they won't bother to check it. Nope. Straight on the bonfire.