In the seconds after he allegedly shot Tamworth policeman David Rixon in the chest after being pulled over for a random breath test, Michael Allan Jacobs was captured on camera telling the officer: "die... I'm sorry sir, sorry sir," a court has heard.

Senior Constable Rixon, bleeding from a fatal chest wound, is then pictured handcuffing the accused before collapsing onto the ground where he died minutes later.

Final act: Senior Constable David Rixon handcuffed the accused before collapsing onto the ground where he died minutes later. Credit:Barry Smith

The revelations came during the opening of Jacob's trial for the murder of Senior Constable Rixon on March 2, 2012.

Crown Prosecutor Pat Barrett told the jury that the crucial moments of the crime had been caught on video cameras located in the 40-year-old officer's highway patrol vehicle, which began recording shortly after he began pursuing Jacob's white Holden Statesman on Gunnedah Road Tamworth just before 8am.