Shop owners in Midlothian have been warned to be on the look-out for forged £20 notes.
A total of 12 counterfeit Royal Bank of Scotland £20 notes have been passed to retailers in Loanhead in the last few weeks. All but one has been successfully used to purchase goods.
PC Frances Little said: “There is a significant difference in quality compared to genuine notes, nonetheless they have been successfully passed on a number of occasions, and we are warning shop owners and staff to be vigilant.
“Looking at the paper quality, print quality metallic security thread and watermark are three simple ways of checking if a note is counterfeit. Counterfeit banknote detection pens are available at low cost, and are easy to use. It is a criminal offence to hold or pass a note that you know to be counterfeit.”
“If anyone suspects they have been handed a fake note, then they should seize it and contact the police on 101.