(1) In this section "appropriate date" has the same meaning as it has in section 19.

(2) Having considered a notification made to it, the Authority may decide that it shall carry out an investigation (in this section referred to as a "full investigation") in relation to the merger or acquisition concerned.

(3) On completion of a full investigation in relation to the merger or acquisition concerned, the Authority shall make whichever of the following determinations it considers appropriate, namely that the merger or acquisition -

(a) may be put into effect,

(b) may not be put into effect, or

(c) may be put into effect subject to conditions specified by it being complied with,

on the ground that the result of the merger or acquisition will or will not, as the case may be, be to substantially lessen competition in markets for goods or services in the State or, as appropriate, will not be to substantially lessen such competition if conditions so specified are complied with.

(3A) Where, on completion of a full investigation in relation to a merger or acquisition -