(CNN) In late January, Diddier Pacheco Salazar walked into a Portland, Oregon, courtroom for a hearing in his DUI case. Immigration agents were in the hallway outside, waiting to arrest the undocumented immigrant afterward and possibly deport him. He never came out. What happened in that courtroom is now the subject of an investigation. The focus is on the presiding judge, and whether she allowed Salazar to sneak out through another door. "We are trying to determine what exactly happened and whether any rules or policies were in fact violated," said Multnomah County Circuit Court ‎Trial Court Administrator Barbara Marcille.Undocumented immigrant eluded immigration agents by sneaking out of courtroomAn investigation focuses on whether the presiding judge allowed him to leave
"They're there lawfully, and ICE has worked very hard over the years in _ to be sensitive to the concerns of the judges in state or county courthouses and try and take people into custody outside the courthouse facilities."