Who would do this to a small family business, or anybody really?"Mr Greven has now put up signs warning customers that notes would be inspected with a UV light at the cash register, with staff trained to look for security features such as hidden watermarks which can be missing from fakes. "The paper, or the plastic that it's on, the little watermark is pretty well glued on, but it's pretty good," Mr Greven said."We have camera systems everywhere, so we have them on camera as soon as they walk in .. and whether or not someone is trying to be dodgy in a small business or at the local footy club or in a Facebook Marketplace transaction, we just need it to end," Ms Clancy said."Really, look and feel and also try to do a little tear of notes as they come in because the real money is polymer, it's difficult to tear and it does feel different to some of the counterfeit notes."Try to find a little bit of raising along the words and the numbers and also have a look at the transparent window, because it should be part of the note, not look like an addition to it."Ms Clancy said businesses were within their rights to refuse suspicious notes but if they believed they had a counterfeit, they should record the information and report the incident to police. "If they do end up having one in their possession, that they try not to touch it ..