Trafficking in human beings is a major problem today, both in the European Union and beyond. Even if reliable statistics are not available, it is clear that every year a significant number of people, largely women and children, fall victim to trafficking for sexual exploitation, labour exploitation or other purposes. This study by the European Union Agency for Fundamental Rights reveals that the disappearance of children from shelters and similar facilities is widespread, and that there is a high risk of these children falling victim to trafficking.