 They are now under the Ministry and operate on a geographic command basis performing ground security, law enforcement, counter-narcotics, border patrol, and tourism security functions.The Costa Rica Coast Guard also operates directly under the Ministry.Outside the "Fuerza Pública", there is a small Special Forces Unit, the "Unidad Especial de Intervencion" (UEI) or Special Intervention Unit, an elite commando force which trains with special forces from around the world, but is not part of the main police forces.