You should carry some form of photo ID with you at all times. Protests take place regularly, often without warning, in a number of Brazilian cities, including Rio de Janeiro, São Paulo and Belo Horizonte. There have been violent incidents and injuries. Avoid demonstrations, monitor local media and follow the guidance of local authorities. Drug trafficking is widespread in Brazil. If you are caught trafficking the penalties are severe, often involving long prison sentences in a Brazilian prison. The penalties for possession of drugs for personal use range from educational classes to community service.