Asked about the new Sheller Center report, ICE officials said their courthouse enforcement includes actions against specific targets who have criminal convictions, are gang members or national-security threats, or have been ordered to be deported or were previously deported. Witnesses in cases, and family members or friends who are accompanying “the target alien,” are not to be arrested except in special circumstances, such as if they pose a threat to public safety or interfere with ICE, the agency said.