Bhutan is one of the safest countries in the world however you should still exercise caution when visiting. Please ensure that your belongings especially your passports, cameras, wallets and purses are properly secured. Please refrain from leaving such items within sight in locked vehicles while sightseeing.
Avoid drinking tap water which has not been boiled or ice cubes in drinks at all times as most water sources in Bhutan are untreated. One can easily acquire affordable treated and bottled water.
Also, Bhutan has a duty to protect its citizens from drugs and tobacco products. To do this we need your help and cooperation. Please co-operate if stopped and asked about your baggage. Please do not carry tobacco goods in excess of the set limit. For more information please see following link. Tobacco Control Act – See more at: http://www.tourism.gov.bt/travel-tips/precautions#sthash.mN0HH4u7.dpuf