Wali said the revelations of Mirza had no legal value, however thorough and fair investigation should be conducted in this regard.
He termed the confessions of Mirza of ‘serious nature’.
He said fair probe of statements of the death row convict would be beneficial for all including the MQM.
Mirza was sentenced to death by an anti-terrorism court in May 1999 for murdering the managing director of then Karachi Electric Supply Corporation Shahid Hamid, his driver Ashraf Brohi and guard Khan Akbar in July 1997.
The ANP chief opposed Pakistan’s stance on Yemen conflict and said Pakistan should refrain from becoming a party in the battle of Arab countries.
Regarding leaking of a telephonic conversation between Imran Khan and Arif Alvi, Wali said the conversation had revealed the real motives behind Islamabad dharna.