The Department of Justice is deploying 50 judges to immigration detention facilities across the United States, according to two sources and a letter seen by Reuters and sent to judges on Thursday.

The department is also considering asking judges to sit from 6 a.m. to 10 p.m., split between two rotating shifts, to adjudicate more cases, the sources said. A notice about shift times was not included in the letter…

Two sources familiar with the Justice Department’s plan said the department would ask more judges to volunteer for one or two month deployments at detention centers. If the department cannot find enough volunteers, the department would assign judges to detention centers, the sources said.

Judges who volunteer for the first 50 deployments would be sent to detention centers in Adelanto, California; San Diego, Chicago and elsewhere, according to the letter.