The Lord President of the Court of Session and Lord Justice General is the most senior judge in Scotland, the head of the judiciary, and the presiding judge of the College of Justice, the Court of Session, and the High Court of Justiciary. The Lord President holds the title of Lord Justice General of Scotland and the head of the High Court of Justiciary ex officio, as the two offices were combined in 1836. The Lord President has authority over any court established under Scots law, except for the Supreme Court of the United Kingdom and the Court of the Lord Lyon.

The judiciary of Scotland are the judicial office holders who sit in the courts of Scotland and make decisions in both civil and criminal cases. Judges make sure that cases and verdicts are within the parameters set by Scots law, and they must hand down appropriate judgments and sentences. Judicial independence is guaranteed in law, with a legal duty on Scottish Ministers, the Lord Advocate and the Members of the Scottish Parliament to uphold judicial independence, and barring them from influencing the judges through any form of special access.