Definitely. My point is that it's not an unheard of practice. Stick your signing keys in a different jurisdiction and . . .

. . . well, I suppose the courts could always compel a roomful of key holders to enter their codes. But it's much harder if some physical presence is required (do they handcuff you, fly you to the Caymans and force you to enter your key? Do they try to recover the hardware in question -- that could be made arbitrarily difficult).