"(5) The Competition Appeal Tribunal may— (a) dismiss the application or quash the whole or part of the decision to which it relates; and (b) where it quashes the whole or part of that decision, refer the matter back to the original decision maker with a direction to reconsider and make a new decision in accordance with the ruling of the Competition Appeal Tribunal."
" Investigations and reports on market investigation references (1) The Commission shall prepare and publish a report on a market investigation reference within the period permitted by section 137. (2) The report shall, in particular, contain— (a) the decisions of the Commission on the questions which it is required to answer by virtue of section 134; …"
" Time-limits for market investigations and reports (1) The Commission shall prepare and publish its report under section 136 within the period of two years beginning with the date of the market investigation reference concerned. … (4) No alteration shall be made by virtue of subsection (3) which results in the period for the time being mentioned in subsection (1) exceeding two years. … (7) References in this Part to the date of a market investigation reference shall be construed as references to the date specified in the reference as the date on which it is made."
" Duty to remedy adverse effects (1) Subsection (2) applies where a report of the Commission has been prepared and published under section 136 within the period permitted by section 137 and contains the decision that there is one or more than one adverse effect on competition. (2) The Commission shall, in relation to each adverse effect on competition, take such action under section 159 or 161 as it considers to be reasonable and practicable— (a) to remedy, mitigate or prevent the adverse effect on competition concerned; and (b) to remedy, mitigate or prevent any detrimental effects on customers so far as they have resulted from, or may be expected to result from, the adverse effect on competition. (3) The decisions of the Commission under subsection (2) shall be consistent with its decisions as included in its report by virtue of section 134(4) unless there has been a material change of circumstances since the preparation of the report or the Commission otherwise has a special reason for deciding differently."