Senator of the College of Justice
The senators of the College of Justice in Scotland are judges of the College of Justice, a set of legal institutions involved in the administration of justice in Scotland. There are three types of senator: Lords of Session (judges of the Court of Session); Lords Commissioners of Justiciary (judges of the High Court of Justiciary); and the Chairman of the Scottish Land Court.
Source: Wikipedia — Senator of the College of Justice (CC BY-SA 4.0)