importation

In a statement issued last year, the government said it "takes a clear and strong stand against the importation of politics of other countries into Singapore".

Police Scotland believe all four are linked to criminality, ranging from drug importation to a fresh wave of gangland violence across the central belt.

Police Scotland believe all four are linked to criminality ranging from drug importation to a feud between rival criminal gangs in Glasgow and Edinburgh.

"We have seen the use of people who have specialist skills in logistics to facilitate these importations."

"They attempted to make their operations appear legitimate but investigators unravelled their vast communications and movements showing they would often transport pallets back across to England so they could be reused for further importations."