Ko Samui has a general atmosphere of safety and respect towards tourists, with locals often going out of their way to assist visitors. While drug-related offenses and theft can occur, these are not as common particularly in tourist areas. Regular safety measures like not showcasing valuable items or walking alone late at night in isolated areas would further ensure your safety. However, scams related to motorbike rentals and taxis are more prevalent, so it's important to be wary. Both gender-based harassment and tourist-targeted crimes are low compared to other regions.