"(a) Records to support calculations in letter of19 June 2006 As explained on the telephone I need to understand how the percentages were derived from the supporting records. In addition to your client's working papers, for each of the premises covered by the calculation I would like to see the following supporting documentation: (i) 'Z' reads & any associated management reports (ii) Audit rolls (iii) Meal bills issued (if appropriate) From a brief look at the calculations provided by your client, my understanding is that your client has applied the percentages derived for the period 11/05/06 through to 16/06/06 equally over the previous three years. This appears to be inconsistent with the approach described in your letter. Finally in relation to this point, I am surprised that your client has placed reliance on the till records drawn from a time when there were acknowledged to be 'glitches'. I have received no comment on this point made in my follow-up notes from the meeting of 31/05/06. It had been expected that the main purpose of the meeting today was to review the takings records and subsequent standard-rated/zero-rated splits that had been measured following the installation of new tills. We were disappointed that no such information was readily available owing to glitches in the installation and programming of the new tills. Could your client therefore explain what has occurred since the meeting to allow me to place reliance on these records at this stage?" (b) Regarding the comments by the Representative that HMRC had based their computations on till rolls for the period 03/02 and not 03/03, and the assessment should be vacated, and the records had not been returned to the appellant, the officer stated:- Loss of records reviewed by HMRC officers I wrote in November 2005 requesting that the supporting records for the previous three years be made available for the booked visit in January 2006. At the visit I was presented with a series of cardboard boxes, one for each available month, clearly labelled with the premises and month covered as supporting documents for your client's VAT returns. As previously described, I reviewed some of the available records selecting days from each period where possible to verify the declarations made by your client. After the final visit to the administration office, I took your client's VAT Working papers and issued an official receipt for these documents. These documents were returned a few days later and a receipt obtained for them. A copy of that receipt is enclosed. At no point did either myself or my colleague, Sharon Kenny, remove any of the 'Z' reads or audit rolls as presented to us. In fact, as the records were so disorganised (each box contained 50-60 'Z' reads and pieces of audit roll in no order whatsoever) distinctly recall replacing the reviewed 'Z' reads into separate envelopes labelled with the month they related to so that, if the need arose, your client would easily be able to review my workings against his own records. It is disappointing that these records have now been mislaid. However, you will recall that a number of the 'Z' reads that we reviewed were correlated with the takings books stored in the main administration office which reassures me that the 'Z' reads related to the dates stated in my note book, that of my colleague and subsequent calculations issued to you and your client. I can confirm however that I have some till reports dated21 February 2006 obtained from one of the premises that was the subject of our officer invigilation exercise in February 2006."