Paragraph 6 Procedural complaints
Complaints about a procedural decision of the kind referred to in paragraph (2) may be made to a relevant person specified by the CMA, who, other than reviewing a procedural complaint under this rule or acting under rule 3 if applicable, must not have been involved in the day to day running of the investigation or as decision maker overseeing the investigation.
A procedural complaint must be made in writing and relate to a significant procedural issue arising from a procedural decision during the course of an investigation.
The relevant person in paragraph (1)—
must consider the process followed in arriving at the decision complained about and the rationality of that decision where the complaint has not been determined or settled to the satisfaction of a complainant by the relevant person overseeing the investigation,
must give notice to the complainant of the decision in respect of the complaint within 15 working days from the day on which the CMA receives the complaint, and
may extend the period to give notice of the decision in respect of the complaint by no more than 10 working days if the relevant person considers that there are special reasons why the notice of the decision in respect of the complaint cannot be given to the complainant within the period under paragraph (3)(b).