The 1er Batallón de Combate-Grupo Especial Uno (1st Combat Battalion-Special Group One, GE-1) is a tactical assault division of the Argentine Federal Police. It depends directly of the Infantry Guard Corps, and its motto is Nihil Obstat (Nothing Hinders). All GE-1 officers must pass a rigorous, extensive training course before he/she apply to join. It is important to know that all active personnel remains in their original unit and are called when needed, a selective style similar to many American SWAT groups. The division constantly trains with similar Argentine and foreign special units.