 Immigration Officers enjoyed an annual salary of between £200-300 and controlled passengers and seamen at ports throughout the United Kingdom.This included Ireland until the creation of the Irish Free State in 1922 and, even after this, UK immigration officers controlled Irish ports until 1925 while the new administration made its own arrangements.By the late 1950s the numbers of arriving passengers at airports overtook that of seaports for the first time and the distribution of staff began to reflect this.