Thousands have been killed in recent years across Pakistan in fake encounters.
According to reports, suspects allegedly resist arrest, killed in encounters and then later identified as terrorists.
The latest encounter saw a family gunned down in broad daylight near Sahiwal last month.
Four people were killed including parents and their teenage daughter. Three children survived the incident.
One of them, Umair Khalil, 9-year-old, told the media in a video broadcast widely across Pakistan that police shot at his family and killed them.
The video went viral on social media and news outlets across Pakistan.
Police initially defended themselves by saying they were terrorists with links to the Daesh group.
The “encounter” was filmed on phones and the videos posted online creating anger among the masses.
Pakistani human rights activist Haroon Baloch said, had the Sahiwal incident not been filmed, nobody would have noticed the extrajudicial killing.
Making videos on the cell phones can have far more impact than the camera of a news channel.
The prime minister vowed that exemplary punishment would be given to the guilty.
Five Counter Terrorism Force cops were charged with murder after the videos were shown online and protests erupted.
The incident is the latest instance of how phones are radically changing the fake encounters Pakistanis relationship with police and power.
Independent Human Rights Commission of Pakistan (HRCP) chairperson Mehdi Hasan said, it’s a culture of the police in Pakistan to kill people and make it look it like an encounter.