Police have urged north businesses to be on their guard after more fake bank notes were discovered in the Highlands.
Counterfeit cash has recovered in Inverness and Nairn, with two cases reported in the city this week alone.
Police have previously revealed that a “number of reports” were made about the notes in early September.
The fake £50 notes have been branded to appear as if they were printed by the Northern Irish First Trust Bank and all bear the same serial number.
They have all been traded for low-cost items before they are discovered to be fake.
Police have also identified a man who they are keen to identify and speak to in connection with the counterfeit notes.
Detective Constable Gregg MacDonald urged the public – and particularly those who work in shops – to be on their guard against the counterfeit currency in circulation.
He said: “Recently police have received a number of reports of counterfeit banknotes being used in the Inverness and Nairn areas in recent weeks.
“These include First Trust Bank £50 notes which bear the serial number AA294395.
“These are being tendered for low cost items in shops in the Highlands and later being found to be counterfeit currency.
“Police are advising those members of the public who are dealing with cash sales to bear this in mind and check high value banknotes before giving change. Anyone who deliberately uses counterfeit currency is committing crime and we will investigate all instances reported to us”.
“We are keen to identify and speak with a male described as being white, 25-30 years old, about 5′ 10″ tall, medium build, short brown hair, thick Irish accent with distinctive tattoos on his arms and neck.”
Anyone who has any information about those using the counterfeit banknotes or wishes to report having received one should contact Police Scotland on 101 or Crimestoppers on 0800 555 111.