The suspects, a 33-year-old man and a 25-year-old woman, were apprehended following an incident at around 3:50 a.m. on Aug. 24, the Singapore Police Force (SPF) said in a statement on Aug. 26.

Counterfeit Singapore $100 notes as seized by the police. Photo by Singapore Police Force

Preliminary investigations revealed that the man handed S$150,000 to a cage cashier to deposit into his casino account. While counting the cash, the cashier discovered a S$100 Portrait Series note printed with the word "COPY" and immediately alerted the authorities.

Police officers subsequently escorted the man to his hotel room, where they intercepted the female suspect attempting to leave with a printer.

A search yielded 121 counterfeit S$100 notes in her possession, along with counterfeiting equipment including bottled ink, paper, and a paper cutter, all of which were seized as evidence.

Tools used by the Chinese couple to print the counterfeit notes. Photo by Singapore Police Force

The Singapore Police Force said both individuals face charges of "engaging in a conspiracy to counterfeit Singapore Currency notes" under the Penal Code.

If convicted, each suspect faces a maximum sentence of 20 years in prison and a fine.