What type of people were sent back from the Ellis island?

At Ellis Island, individuals could be sent back for various reasons, primarily due to health issues, such as contagious diseases, or if they were deemed to be a public charge, meaning they were likely to require government assistance. Additionally, some immigrants were rejected based on legal grounds, such as lack of proper documentation or criminal records. The inspection process was rigorous, and those who failed to meet the criteria faced deportation back to their countries of origin.