The California City immigration detention center, run by CoreCivic and housing about 1,600 people, has banned all contact visits since opening a year ago, forcing families to speak through glass and phones. Detained immigrants and their relatives, including Teresa Reyes and her son Guillermo, and Allen Tayson, a green card applicant detained by ICE, describe the isolation as part of a broader strategy to pressure people into accepting deportation. Advocates say the total ban is unusually harsh compared to standard prison visitation policies.