A report on immigration detention released Tuesday by the Obama administration paints a picture of a costly, inappropriately penal system that is growing without basic tools for management and monitoring, while the government office nominally in charge struggles with high turnover and a lack of expertise.
Though the administration has indicated that it wants to concentrate immigration enforcement on serious criminal offenders, the report shows that one of the largest and fastest-growing segments of the population in detention is noncriminals picked up in the enforcement programs the government has embraced.


