Six teams of horses and officers from Police Scotland's Mounted Division have been patrolling Dumfries to support local officers.
It is their first visit to the town since the amalgamation of all Scottish forces on 1st April.
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Trail hunting, where a scent is laid for hounds and the hunt to follow, has been widely practised since the 2005 ban on fox hunting.
Dangerous chemicals stored in a laboratory at the nuclear reprocessing plant have now been detonated by an army bomb disposal team.
Explosives experts were called to the nuclear reprocessing site in Cumbria, to help deal with chemical substances.