Police said the polygraph report on Ahsan, husband of anchor Rabia Ahsan, is expected within days, as the probe weighs whether the fatal shot was accidental.
The polygraph test of Ahsan, husband of anchor Rabia Ahsan, was completed at the Punjab Forensic Science Laboratory after more than two hours.
Police said the report is expected within a few days and will help assess the authenticity of his statements.
The anchor's brother, Khurram, withdrew the murder FIR and said the firing was accidental, with no dispute between the couple.
Initial investigations found the pistol recovered from the scene was unlicensed; the post-mortem says the bullet struck the lower neck from the front.
The investigation is ongoing, and further action depends on forensic laboratory reports.