Rangers have expressed fears of clandestine replacement of prisoners in different jails of Karachi.
Rangers have requested the ministry of interior to get documents of suspicious prisoners verified through the National Database and Registration Authority (Nadra).
According to Nadra sources, surprising details have been unearthed about four of the prisoners. Sources told that documents of these prisoners did not match with the record in jail. It is suspected that four of the prisoners have been released while some impostors are incarcerated to serve the remaining term in place of actual criminals.
The interior ministry has also ordered Sindh Rangers to probe the matter.