There is an old tradition, still believed by many lawyers, that these year-books were official reports made by a reporter appointed and paid by the king. If there ever was such a reporter, he is yet to be discovered. No year-books have been found in the treasury of the courts; there is no record of the appointment or payment of any official reporter, through all the two hundred and fifty years covered by the year-books; all the year-books now in the British Museum were found in private hands.2 Is it conceivable that an official reporter would criticize the court and its decision, and add comments as the writers of the year-books often did?
Rood, John R. "Some Observations on Case Law Reporting." Mich. L. Rev. 4 (1906): 516-25.