Prime Minister Srettha Thavisin’s May 7 announcement of plans to put cannabis back on the narcotics list has faced opposition from businesses and even members of his ruling government, though some welcome the prospect of safeguards against foreign players.

Draft bills on cannabis have been circulating for months but there remains a lack of clarity or detail about how the Pheu Thai-led government will enact changes to the law.
The Ministry of Public He…