“There’s no uniform process for determining parental fitness,” and the child's best interest, said Laura Peña, the attorney who authored the Texas Civil Rights Project's report and represented Perez-Domingo.That’s a high-stakes determination that Border Patrol agents are not equipped to make, Peña and other immigrant advocates told The World. CBP’s justifications for separating families are often vague or unsubstantiated, and could violate the Ms. L court order, they say.“We are seeing an overuse of separations based on what they call ‘law enforcement’ purposes,” said Eleanor Acer, senior director for refugee protection at Human Rights First. “And in some cases, there is really no basis for that. There’s no process for any of this, or independent review for any of this.”