(CNN) More immigration judges will begin conducting hearings over video conferencing at tent courts along the US-Mexico border, raising concerns among lawyers about transparency in the immigration process.

Earlier this year, the Trump administration erected facilities in Laredo and Brownsville, Texas, to serve as makeshift courts for migrants seeking asylum in the United States who have been returned to Mexico until their court date. The judges in these cases are not at the tent facility but preside by teleconference from other immigration courts several miles away.

As of mid-September, there were 19 judges from three separate immigration courts in Texas hearing cases. But the latest expansion includes the use of immigration judges assigned to a center in Fort Worth, Texas, that is closed to the public, leaving little opportunity for people to observe hearings.

"I'm just very concerned that there will be no public access to these hearings. And hearings will be operating in secret, without any transparency and notice to the public," said Laura Lynch, senior policy counsel at the American Immigration Lawyers Association

US court proceedings are generally open to the public.

Read More