Most travellers are aware that using drugs within the UAE is a serious crime, but may not be aware that having marijuana residue in their system can result in a 4 year prison sentence. With marijuana being legal in some countries in Europe, the ill researched traveller could end up serving time if the police perform a blood or urine test that proves positive. Samples for testing could be taken due to suspicion at the airport or in the event that one is involved in any other