However, the statements in Miller are not necessarily applicable in this Court. In England, the taxing officer peruses the whole of the solicitor's file before he or she decides to exercise the power under O. 62, r. 20(d) of the Rules of the Supreme Court to "order the production of any document which may be relevant in connection with those proceedings". See O. 62, r. 29(7) of the Supreme Court Rules; Miller [7] . In those circumstances, it is not surprising that in England a taxing officer will look for "further evidence" to support an allegation made by a party in the taxation. However, in taxation proceedings in this Court, the claimant's solicitor is not required to produce the file. Furthermore, discovery is not available in a taxation of costs. Moreover, the taxing officer can exercise his or her power under O. 71, r. 70 of his or her own motion. If the taxing officer thinks that there is a genuine factual issue between parties, then, in my opinion, he or she can exercise the powers under O. 71, r. 70. As long as the taxing officer exercises those powers "for the purpose of taxation of costs", and not capriciously or unreasonably, he or she need not have any evidence before him or her. As Hobhouse J. said in Pamplin [8] :