15 Whether or not the Judge has been the trial Judge, there may be work done of which the Judge is not aware. For example, there may have been unusually voluminous discovery, which is not reflected in the actual number of documents tendered at trial, or there may have been consultation with potential expert witnesses or research of issues of law which were not in the end reflected in the trial. Such work may not have been unnecessary in the light of what was known at the time, but may have resulted in agreement between the parties or a decision by one or another party to abandon an issue which at first appeared to arise. In those cases, it will be necessary for affidavit material to be placed before the Judge explaining in general terms what work was done and why it was done, and giving some indication of the time occupied by such work. It will, of course, be necessary to establish that, prima facie, costs appear to have been incurred which exceed those allowable under the scale. Whether this material is produced in the form of a computer printout, or a draft bill, or a summary prepared by the practitioner having carriage of the file, does not appear to me to matter. If the step is taken of producing a detailed schedule or a computer printout or the like, the Judge will not examine the material line by line, looking for possible duplication or overlap, or enquiring about the way in which every 10 minutes was spent.