Canon 1259

1. Each of the experts should draw up a report distinct from

the others unless the judge orders that one report be made and

signed by the experts individually; if this latter is done, differences of opinion, if any, are to be carefully noted. 2. The

experts must indicate clearly by what documents or other apt

means they have been informed about the identity of persons,

things or places, by what path and method they proceeded in

discharging the function given to them and on what grounds, for

the most part, their conclusions are based. 3. An expert can

be summoned by the judge to supply further explanations which may

seem necessary.