According to details, the meeting took place in Islamabad during which the British diplomat held discussion with the interior minister relating to Imran Farooq murder case.
Chaudhry Nisar also showed the video statement of prime suspect Moazzam Ali in the case to Mr Barton.
Both the statesmen also discussed the statement of the prime suspect and its implications in the case.
During the meeting, the British HC assured Nisar that once convicted the accused will be handed stern punishment.
Here it is pertinent to note that yesterday Chaudhry Nisar Ali Khan had announced the arrest of Moazzam Ali, whom the law enforcers believe to be the central character of the case.
He had facilitated the two other suspected hitmen in travelling to UK on student visas and getting enrolled in courses there.