Question: The Sheriff of Lorn was responsible for enforcing law and order in Scotland and would be seated in which castle?

Context paragraphs:
Sheriff of Lorn: The Sheriff of Lorn/Lorne was historically the royal official responsible for enforcing law and order in Lorne, Scotland and bringing criminals to justice.  The sheriffdom was created in 1293 by King John of Scotland in an effort to maintain peace in the western reaches of his realm.  Dunollie Castle was the seat of the sheriff.

Sheriff of Banff: The Sheriff of Banff was historically the office responsible for enforcing law and order in Banff, Scotland and bringing criminals to justice.  It became known as the Sheriff of Banff, Elgin & Nairn in 1854 and the Sheriff of Aberdeen, Kincardine & Banff in 1882.

Sheriff of Ayr: The Sheriff of Ayr was historically the royal official responsible for enforcing law and order in Ayr, Scotland and bringing criminals to justice.  Sundrum Castle was used by the sheriff from the 14th century, and Loudoun Castle from the 16th century.

Sheriff of Edinburgh: The Sheriff of Edinburgh was historically the royal official responsible for enforcing law and order in Edinburgh, Scotland and bringing criminals to justice.  It became known as the Sheriff of Midlothian and Haddington in 1872, Sheriff of the Lothians in 1881 and Sheriff of the Lothians & Peebles in 1883.

Sheriff of Clackmannan: The Sheriff of Clackmannan was historically the office responsible for enforcing law and order in Clackmannan, Scotland and bringing criminals to justice.  It became known as the Sheriff of Clackmannan & Kinross in 1747, the Sheriff of Linlithgow, Clackmannan & Kinross in 1865 and the Sheriff of Stirling, Dumbarton & Clackmannan in 1881.

Sheriff of Inverness: The Sheriff of Inverness was historically the office responsible for enforcing law and order in Inverness, Scotland and bringing criminals to justice.  It became known as the Sheriff of Inverness, Elgin & Nairn in 1882 and the Sheriff of Inverness, Moray, Nairn & Ross & Cromarty in 1946.

Sheriff of Nairn: The Sheriff of Nairn was historically the office responsible for enforcing law and order in Nairn, Scotland and bringing criminals to justice.  It became known as the Sheriff of Elgin and Nairn in 1747, the Sheriff of Banff, Elgin & Nairn in 1854, the Sheriff of Inverness, Elgin & Nairn in 1882, the Sheriff of Inverness, Moray, Nairn & Ross & Cromarty in 1946.

Sheriff of Dumbarton: The Sheriff of Dumbarton was historically the royal official responsible for enforcing law and order in Dumbarton, Scotland and bringing criminals to justice.  It became known as the Sheriff of Dumbarton & Bute in 1854, the Sheriff of Stirling & Dumbarton in 1871, the Sheriff of Stirling, Dumbarton & Clackmannan in 1881 and Sheriff of Stirling, Dumbarton & Clackmannan in 1975.

Sheriff of Ross, Cromarty and Sutherland: The Sheriff of Ross, Cromarty and Sutherland was historically the office responsible for enforcing law and order in Ross-shire, Cromarty and Sutherland, Scotland and bringing criminals to justice.  Original known as the office of the Sheriff of Cromarty it became known as the Sheriff of Ross & Cromarty in 1747, the Sheriff of Ross, Cromarty & Sutherland in 1870 and the Sheriff of Inverness, Moray, Nairn & Ross & Cromarty in 1946.

Dunollie Castle: Dunollie Castle (Scottish Gaelic: Dùn Ollaigh) is a small ruined castle located on a hill north of the town of Oban, on the west coast of Scotland in Argyll.  The site enjoys views over towards the island of Kerrera and a view of the town, harbour, and outlying isles.  The castle is open to the public as part of the Dunollie Museum, Castle and Grounds.

Supporting paragraphs: Sheriff of Lorn Dunollie Castle
Answer: Dunollie Castle