After the nomination, the imperium of the dictator was confirmed by a lex curiata.
They were to be elected for five years by seventeen of the tribes chosen by lot from the thirty-five; the imperium was to be conferred upon them by the lex curiata, together with judicial powers and the rank of praetor.
During these years Commodus was associated with Marcus in the imperium, and.
42: ut varia complurium regum in Parthia successione imperium accepit Orodes qui Crassum delevit).
But above all things the church was being criticized as an imperium in imperio, a privileged body not amenable to ordinary jurisdiction, and subservient to a foreign lordthe pope.