The aim of this handbook is to raise awareness of how host states can regulate and monitor the employment conditions of private domestic workers in diplomat- ic households. It highlights how protocol departments and similar authorities can prevent exploitation or abuse and what can be done if it occurs. Finding effective responses is a challenge for many countries. Switzerland, like Austria, Belgium, the Netherlands, the United States and other host states of international organizations and foreign missions, started to introduce preventive measures some time ago. The need to prevent and respond to employment disputes and to address grievances of private domestic workers, however, has been recognized in other countries too.