Police are urging businesses to be vigilant for counterfeit money following several reports of fake notes tendered recently.
In the last week, police have received at least seven reports of counterfeit $50 and $100 notes tendered to businesses on the North West Coast.
The counterfeit notes have Chinese writing printed on them.
All businesses and staff are urged to be vigilant when accepting money and to check notes are real, especially $50 and $100.
If anyone has a bank note in their possession and they are concerned about the authenticity, they should contact police immediately.
Anyone who has information regarding the production or purchasing of counterfeit notes is asked to contact police on 131 444 or Crime Stoppers anonymously on 1800 333 000.
Further information regarding counterfeit detection information can be found on the Reserve Bank of Australia website www.banknotes.rba.gov.au