“This ruling will have grave consequences not only for these families, but also for many other asylum seekers whose lives are at risk due to the lack of effective safeguards in expedited removal processing," the release stated.
In 2016, the families, including 33 children from El Salvador, Honduras and Guatemala, had asked the Supreme Court to overturn a lower court ruling that refused them the ability to challenge their removal from the United States.
Human Rights First called Monday's decision concerning because the highest federal court has not used an opportunity to correct the previous ruling.
On January 25, US President Donald Trump ordered the resumption of the 2008 Secure Communities program that relied on information-sharing among local, state and federal law enforcement agencies to identify and deport immigrants with criminal records.