Which participant of the trial process usually holds a specific official rank?

explanation:

a trial judge has broad powers in his courtroom. the judge's decision is usually final for the duration of the trial, and the party's one special type of witness is an expert witness.

hello! : )

i think a judge or jury, as they preside over the court and is the central figure in a trial.

hope this and i hope i answered in time!

good luck!

~ destiny ^_^

answer; professor;

a system of cooperative federalism emerged, as the powers of the federal government expanded.