A more thorough explanation:

A procurator fiscal is a legal representative in Scotland who works under the Lord Advocate. They are responsible for investigating sudden deaths and crimes, as well as prosecuting cases in the sheriff or district court.

For example, if someone dies unexpectedly, the procurator fiscal will investigate the circumstances surrounding their death to determine if any criminal activity was involved. They will also gather evidence and present it in court if necessary.

Another example would be if someone is accused of a crime, the procurator fiscal will review the evidence and decide whether or not to bring charges against them. If charges are brought, they will then prosecute the case in court.

Overall, the procurator fiscal plays an important role in the Scottish legal system by ensuring that justice is served and that those who break the law are held accountable for their actions.