5.—(1) A commission's terms of reference shall, as appropriate and to the extent possible, specify the events, activities, circumstances, systems, practices or procedures to be investigated, including—

(a) the dates on which or the periods during which the events occurred, the activities were undertaken, the circumstances arose or the systems, practices or procedures were in operation,

(b) the location or area within the State where the events occurred, the activities were undertaken, the circumstances arose or the systems, practices or procedures were in operation, and

(c) the persons to whom or which those events, activities or circumstances relate or whose activities, systems, practices or procedures are to be investigated,

with a view to ensuring that the scope of the investigation into any matter referred to the commission is described precisely.

(2) The specified Minister shall ensure—

(a) that an accompanying statement is prepared containing—

(i) an estimate of the costs (including legal costs) to be incurred by the commission in conducting the investigation and preparing its reports, and

(ii) a time frame for the submission of the commission's final report to the specified Minister, and

(b) that, as soon as possible after the terms of reference are set, they are published with the statement in Iris Oifigiúil and in such newspapers or other publications as the Minister considers appropriate.