Businesses on the Solway Coast say they are benefitting from tourists' interest in the rich history of smuggling along the coastline.
Everything from alcohol to tobacco was smuggled into Scotland from the Isle of Man.
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Sandy Murray, of Police Scotland, was was giving evidence at the trial of a bus driver who denies killing Ryan Baird by dangerous driving.
34-year-old Christopher Peck was involved in a head-on crash with a drunk driver. His funeral has taken place in his hometown, Workington.
The arrests come weeks after a much-publicised series of appeals to mark the 30th anniversary of the 18-year-old's death.