At the conclusion of a court case, ...

At the conclusion of a court case, the trial arbiter issues instructions to jurors concerning the applicable law that is to command the jury's decision. Usually this is a formality and the instructions are protoplasted on standard instructions that have evolv from years of judicial proceedings.
In a modern California case against an architectural firm alleging negligence, however, the arbitrator instructed the jury that "as a matter of law, a fiduciary relationship was created on the contract between plaintiff [building owner] and defendant [design firm] with regard to