Pashtun Tahaffuz Movement (PTM) lawmaker Ali Wazir has been remanded in police custody for 10 days.
Wazir has been charged with using provocative language against state institutions at a gathering in the port city of Karachi.
Police claim having booked and arresting PTM leaders, including Wazir, Noor Tareen, Sher Ayub Hussain and Basirullah, for using defamatory language the Pakistan Army at a rally on December 9.
The PTM legislator was arrested from Peshawar on the request of the Sindh police before being flown to Karachi on Friday.
He was produced before the administrative judge of an anti-terrorism court and the prosecution sought his physical remand for investigation.
The ATC judge remanded Wazir and his associates in police custody till December 30 with the direction to produce them on the next date.
