answer:If you can pull up precedent of this happening, I would say that you have a case. It seems a little outlandish to “swear in” a piece of machinery. The cop is the one sworn in. Instead, your case should be over the legitimacy of the testimony of the cop based on the possibility of faulty equipment. This is where you take your stand: the cop was wrong in assessing your speed (due to faulty equipment); therefore you are innocent. The question still remains though: were you speeding?