IANAL, but I don't think so. They don't have to prove that the data you just wiped contained evidence of wrongdoing, they just have to prove that you wiped the

IANAL, but I don't think so. They don't have to prove that the data you just wiped contained evidence of wrongdoing, they just have to prove that you wiped the data after they asked for it. That's kind of the point of "destruction of evidence". If they already knew the contents of the data, they wouldn't actually need it, now would they?