Understanding Local Laws That Catch Tourists Off Guard

My friend Tom was having the trip of his life in Amsterdam until he lit a cigarette in a non-smoking hotel lobby. The fine was 350 euros. Then he argued with the staff about it, which escalated to a police report. His "vacation" turned into a week of legal hassle that cost him $2,000 in fines and legal fees. He did not even know he had broken a law. How many laws in your destination country do you think you are accidentally breaking right now?

Singapore has some of the strictest drug laws on earth. Possession of even small amounts of marijuana can result in mandatory minimum sentences. As of 2026, the Misuse of Drugs Act criminalizes cannabis completely. This includes products containing THC, including some CBD oils and edibles that might be legal in your home country. If you are caught at Changi Airport with a THC gummy someone gave you as a gift, you are facing potential imprisonment.

Japan seems Westernized in many ways but its laws around alcohol and public behavior can surprise you. You cannot drink in many public spaces, including some parks and streets, even if you are just walking between bars. The legal drinking age is 20. But here is the weird one. If you are visibly drunk on a train, you can be arrested. Not fined, arrested.

Did you know that in Greece, you can face charges for photographing military installations, even accidentally? Some Greeks take this very seriously and will report photographers to authorities. In South Korea, it is illegal to photograph strangers in public without permission, violating privacy laws that are enforced more strictly than you might expect.

This one kills people. Many medications that are prescription-only in your country are completely over-the-counter in others, and vice versa. But some medications that are legal at home are completely illegal abroad. ADHD medications like Adderall are controlled substances in Japan, Singapore, and many Gulf states. Codeine is prescription-only or banned in most of the Middle East and parts of Europe.

Some countries have dress codes that apply to everyone, including tourists. In Vatican City, shoulders and knees must be covered to enter churches. This is enforced at the door by security guards who will not let you inside until you cover up or leave. In Saudi Arabia, women must wear an abaya in public areas, though this rule has relaxed somewhat since 2024.

Ignorance of the law is never an excuse, anywhere in the world. Before you go anywhere, spend one hour researching the specific laws that catch tourists off guard in your destination. There are websites, Facebook groups, expat forums, and embassy pages that list these. That one hour might be the most important thing you do for your trip.