In the early hours of August 24, a casino cashier's trained eye caught a single word — 'COPY' — printed on a counterfeit Singapore banknote, setting in motion an investigation that would expose two Chinese nationals, aged 33 and 25, as alleged architects of an active currency counterfeiting scheme. What began as a routine transaction at Marina Bay Sands became a reminder that elaborate fraud can be undone by the smallest of oversights. Singapore's strict counterfeiting laws now loom over the pair, with convictions carrying sentences of up to two decades in prison — a consequence as weighty as