If the totality of the circumstances establish that a defendant is under police control and not free to leave until police questioning is finished, does the fact that the officer in control informs the defendant that he is not "under arrest" rule out any finding that the defendant was in custody at the time of the questioning?

If a statement by the presiding officer that the defendant is not 'under arrest' precludes a finding of custody despite the totality of the circumstances indicating the defendant was not free to leave during police questioning