Why are we jailing immigrants without charge?

A Nigerian man spent 199 days in custody at the Regina Correctional Centre before being deported. He had not been charged with a crime. A Pakistani man was held at the Saskatoon Correctional Centre for 111 days, also without charges.
These were just two of 21 men and women held in Saskatchewan jails as “immigration detainees” between July 2016 and March 2017. Eleven of them were not facing any Criminal Code charges. Even so, they were housed in the general population, side-by-si