Of more general interest in the report is the explanation that the Thai education system is not doing so well:
Three students used glasses with wireless cameras embedded in their frames to transmit images to a group of as yet unnamed people, who then sent the answers to the smartwatches.
Mr Arthit said the trio had paid 800,000 baht ($31,000) each to the tutor group for the equipment and the answers.
"The team did it in real-time," Mr Arthit wrote.
In the 2014 PISA rankings, which measures global educational standards, Thai students performed below the global average and much worse than those from poorer Vietnam in subjects like maths and science.
Last year, the World Bank said improving poor quality education was the most important step the kingdom could take to securing a better future, with one third of Thai 15-year-olds "functionally illiterate" — lacking the basic reading skills to manage their lives in the modern world.
Critics say the kingdom's high corruption levels and ongoing political instability has made deep-seated education reforms impossible over the last decade.