Exhibit 1
                                                                     ---------

                               AUDITOR'S CONSENT

We hereby consent to the inclusion in Research In Motion Limited's Annual
Report on Form 40-F for the year ended March 1, 2003, of our report dated
March 28, 2003 (except as to note 14 which is as of May 28, 2003), and to the
references to us in such Form 40-F.


                                                       /s/ Ernst & Young LLP

Toronto, Canada                                        Chartered Accountants
July 11, 2003