What Happens If You Are Caught With Cannabis in Thailand Now?

If you are caught with cannabis in Thailand without a valid Thai prescription, you can face fines and possible imprisonment. Public cannabis use is treated as a public nuisance, carrying fines of 20,000 to 25,000 Thai baht and possible imprisonment, and possession of flower without a prescription can bring further penalties under the controlled-herb framework. Reported figures vary at the edges, which is itself a reason to treat the risk seriously.

What counts as an offense

Since June 2025, the offenses include possessing cannabis flower without a prescription, buying it without one, and consuming it in public. Because cannabis flower is a controlled herb rather than an open consumer product, the legal exposure is real even where shops appear to sell casually. Extracts above 0.2 percent THC sit under stricter narcotics law, which carries heavier consequences.

The airport and border trap

Bringing cannabis into or out of Thailand is prohibited, even with a foreign prescription, and even between domestic airports for someone without Thai medical documentation. This catches travelers who assume that a legal purchase inside the country can leave with them. It cannot. International transport of cannabis is treated seriously under Thai law.

Why "the shop sold it to me" is not a defense

A common and dangerous assumption is that buying from an open dispensary makes possession safe. It does not. If the sale skipped the prescription requirement, the transaction was not compliant, and the buyer still carries risk. The presence of a shop is not the same as the legality of your specific purchase.