Former Inspector General of Prisons Shahid Saleem Baig has been arrested from his official residence at IG house in Lahore.
According to sources, the arrested former IG prisons Mirza Shahid Saleem remained on his post for five year.
Sources said that the former deputy superintendent Zafar and DIG prisons Rawalpindi office superintendent Nazim Ali Shah are also being interrogated.
Baig served in the prison department for five years and had retired before the imprisonment of former prime minister Imran Khan.
However, the inquiry into the operations at Adiala Jail has intensified, and officials are scrutinizing several employees for their alleged roles in providing unauthorized access to PTI founder in jail.