Police today warned of a wave of fake £20 notes.
Attempts have ben made to change forged bank notes at shops in Hove and Portslade.
The first was at Buy to Win in Western Road, Hove, then at Bazaar, in Church Road, Hove, Station Road, Portslade, and Portland Road, Hove.
In one case two teenagers tried to buy a flower stem in a bid to get change.
Another incident involved a man of Asian appearance aged about 20.
Inspector Mark Powles said: "Shopkeepers are able to check for forgeries with a special marker pen.
"However, we want to warn anyone who is asked to change a £20 note in the street that there are forgeries about."
Anyone with information should phone Hove police station on 0845 60 70 999.
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