Prima facie case determination requires Commission to record opinion and convene initial meeting after Secretary placement. The Secretary must scrutinise an information or reference, remove defects and place it before the Commission to form an opinion on the existence of a prima facie case. For alleged anti competitive agreements or abuse of dominant position the Commission shall, as far as possible, record its opinion within the prescribed timeframe and hold its first ordinary meeting to consider prima facie existence within a short period after placement by the Secretary.