<prompt> Mc Naughtens rule comes underSec 86 IPCSec 98 IPCSec 84 IPCSec 82 IPC  <response>: Sec 84 IPC says that Nothing is an offence which is done by a person, who at the time of doing it, by reason of unsoundness of mind, is incapable of knowing the nature of the act, or that he is doing what is either wrong or contrary to law. 