David Vilaca
I'm not sure but I think the cops here take 2 oaths, 1 to the crown and 1 to the public which has a caveat of secrecy that if the come across certain information they are bound to not disclose it by oath. that is to say when they figure it out, we are all servants of the crown, have no proprerty rights and are to be held as surety for public debt, they cannot reveal the deception as they are under oath.