A total of 33 suspected drugs packages sent to Shetland via the postal system were intercepted by police last month.
Sergeant Alan Patrick gave the update at a meeting of Lerwick Community Council on Monday night.
Sergeant Patrick said police would not have a firm value of the seizures until further work is carried out by officers on the mainland.
He said any quantity of drugs would be seized by officers.
Drugs coming into Shetland’s postal system has been a focus of the police in recent times – particularly due to travel being shut off during the pandemic.
Shetland’s former area commander, Lindsay Tulloch, said earlier this year that the use of the postal system had become more frequent for dealers.
Local charity Dogs and Against Drugs is also heavily involved in screening packages.
Tulloch’s replacement, chief inspector Paul Daley, said this summer that the police were removing packages “very, very regularly from the Post Office”.
But he said the “police force alone can’t stop drugs coming into the isles, we need intelligence and information coming in; that is the lifeblood of good community policing”.
By local democracy reporter Chris Cope