Well, it's done on a daily basis in terms of monitoring the media and other public information. You'll often see in articles that person X is lobbying either on a particular issue or.... So we will look at that in terms of determining whether, upon further analysis, the individual.... And as I indicated, 90% of them are actually registered. So that's the process we use.
Evidence of meeting #8 for Access to Information, Privacy and Ethics in the 40th Parliament, 3rd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was lobbyists.
A recording is available from Parliament.