Dumfries and Galloway Constabulary was formed on 16 February 1948 out of another merger - this time of the constabularies of Dumfriesshire, Wigtownshire and the Stewartry of Kirkcudbright.
That makes it the oldest of the eight forces being amalgamated on 1 April this year.
In its lifetime, it has seen its officers take the lead in numerous major cases - but one towers above them all.
Some 270 people - from 21 different countries - died when Pan Am Flight 103 was blown up over Lockerbie just before Christmas in 1988.
It resulted in the largest criminal investigation ever undertaken in the UK, which was led by Dumfries and Galloway's Chief Constable of the time, John Boyd.
With the assistance of other forces, Libyan Abdelbaset al-Megrahi was eventually convicted of the bombing at a special court in the Netherlands.
He died last year after being released from jail on compassionate grounds, but the investigation into the atrocity remains "live".
Officers from Dumfries and Galloway visited Libya earlier this year to continue their inquiries.
[At the time of its amalgamation into Police Scotland, Dumfries and Galloway Police had at least one major item of business outstanding, namely Justice for Megrahi’s formal complaint of criminal misconduct in the Lockerbie investigation and prosecution. Almost six months have passed since this complaint with supporting evidence was lodged with the police. As yet no member of Justice for Megrahi’s committee has been interviewed in connection with the complaint. Maybe Police Scotland will be somewhat more active.]