What definition applies to term jurisdiction?

Jurisdiction is the area in which a person or institution has authority. It has particular reference to courts and legislatures, but can refer to any kind of official. Jurisdiction can be a geographical or conceptual area. E.g. "I'm sorry sir, I know you're a policeman in Texas, but you have no jurisdiction in Alberta, so hand over your gun." describes a geographical area. "Yes Mrs. Smith, I know you would like the Town Council to pass a by-law cutting off diplomatic relations with Russia, but Foreign Relations is not in the Council's jurisdiction." describes a conceptual jurisdiction.