You might want to take a look at Broers' Napoleon: Soldier of Destiny, who describes quite well, the creation of the Code Civile, pages 347-358. One of the paragraphs that describes Napoleon's conduct/performance during the process is on page 349:
'Napoleon's sessions began at midday and could run until 7 p.; the discussions were more wide-ranging and less methodical than those chaired by Cambaceres, and the Second Consul would steer the discussion back on course when needed. Indeed, although ready to assert his own opinions, Napoleon showed himself willing to bow to the experts, particularly on points of detail, as when Cambaceres forced him to reject his own proposal for an unworkable set of definitions of 'people and the law' for the first section of the Code. Napoleon thought not in terms of 'society', but of individuals who had three forms of relationships with others. Individuals had relations with the state, with their spouses, and with their other relatives. Cambaceres pushed these generalizations aside as unworkable, and the committee's division into nine categories stood.'
There were 107 sessions during which the Code was proposed, argued, and approved by the Council of State. Napoleon presided at 55 of the sessions, Cambaceres at 52.