The court must decide whether the eight years should include Prayut’s time as leader of the military administration he installed after toppling the Pheu Thai government.
Some of his supporters argue the eight years should be counted after 2017, when a new constitution took effect, or even from 2019, when an election was held and a new parliament chose him to head a coalition government.
Anucha Burapachaisri, government spokesperson, said the verdict would be a chance for clarity.
“I urge the public to wait and see and respect the result,” he added.
The tenure issue is one of many opposition attempts to remove Prayut from office, including four parliamentary no-confidence motions, a conflict of interest case over his use of a military residence, and months of youth-led protests that challenged his leadership and the monarchy.
An Aug 2 to Aug 4 survey of 1,312 people by the National Institute of Development Administration showed nearly two-thirds of people in Thailand wanted Prayut to leave office, while a third wanted to wait for a court ruling.