69Having regard to the broad powers of investigation conferred on the Commission by Regulation No 1/2003, it is for the Commission to decide whether a particular item of information is necessary to enable it to bring to light an infringement of the competition rules. Even if it already has evidence, or indeed proof, of the existence of an infringement, the Commission may legitimately take the view that it is necessary to request further information enabling it better to define the scope of the infringement, determine its duration or identify the circle of undertakings involved (see, to that effect, judgments of 18 October 1989, Orkem v Commission, 374/87, EU:C:1989:387, paragraph 15, and of 22 October 2002, Roquette Frères, C‑94/00, EU:C:2002:603, paragraph 78).
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