Brigada de Trânsito (BT) was a

Portuguese Portuguese may refer to: * anything of, from, or related to the country and nation of Portugal ** Portuguese cuisine, traditional foods ** Portuguese language, a Romance language *** Portuguese dialects, variants of the Portuguese language ** Portu ...

special traffic force, from the Republic National Guard (GNR), which controls the traffic out of the urban areas, they can in some cases act in cities, if they catch violators in those areas. They are mainly responsible for highways and national roads traffic patrolling. It was extinct in 2009. The new orgas are "Unidade Nacional de Trânsito" and "Destacamentos de Trânsito dos Comandos Territoriais".

Official link

GNR - Brigada de Trânsito
Law enforcement in Portugal {{Portugal-stub