The barcodes and QR codes on ballots could violate secret voting rules. Social media users observed that both the green constituency ballots and the pink party-list ballots carried printed barcodes and QR codes. (Photo: Varuth Hirunyatheb)The Constitutional Court has accepted a petition to rule on whether the use of barcodes and Quick Response (QR) codes on ballot papers in Thailand’s Feb 8 general election violated the constitution. One key issue under scrutiny is the inclusion of barcodes and QR codes on ballot papers, which petitioners argue may raise constitutional concerns. On March 13, the Ombudsman petitioned the Constitutional Court to rule on whether the use of barcodes and QR codes violated the constitutional requirement that voting be conducted directly and by secret ballot.

Source: Bangkok Post March 18, 2026 06:49 UTC