Federal law and court orders require that children in Border Patrol custody be transferred to more-hospitable shelters no longer than 72 hours after they are apprehended. But some unaccompanied children are spending longer than a week in Border Patrol stations and processing centers, according to two Customs and Border Protection officials and two other government officials who spoke on the condition of anonymity to discuss the unreleased data. One government official said about half of the children in custody — 1,000 — have been with the Border Patrol for longer than 72 hours, and another official said that more than 250 children 12 or younger have been in custody for an average of six days.
Because the crush of migration at the southern border in recent months has overwhelmed U.S. immigration infrastructure, initial incarceration for the tens of thousands of unaccompanied children who have arrived there has averaged four days, the officials said.