misdirection
noun
[ ˌmɪsdʌɪˈrɛkʃ(ə)n ]
• the action or process of directing someone to the wrong place or in the wrong direction.
• "the deliberate misdirection that had put me off the track"
• a wrong instruction given by a judge to a jury.
• "he won his appeal on the basis of a misdirection by the trial judge"
