Man allegedly tampered with QR codes to âspread messageâ A man allegedly placed fake COVIDsafe QR code check-ins over real ones to âspread his messageâ, a court has heard. Crime by Sean Fewster, Patrick James 28th Apr 2021 6:27 PM Premium Content Subscriber only A man replaced the State Government's COVID-19 QR code check-in outside a suburban shopping centre with codes of his own because he "wanted to get his message out to the public," a court has heard. On Wednesday, Colin Mark Davies, 51, of Edwardstown, appeared in the Adelaide Magistrates Court after being arrested at his home address. In court, police prosecutors allege the offences occurred at the Forbes Shopping Centre on Marion Road at South Plympton on Sunday, April 25.