Halifax Regional Police entered surveillance video into evidence on Thursday of the shooting incident outside a Halifax children's hospital in 2008.

Jeremy Alvin Leblanc, 28, and Matthew James Murphy, 26, are charged with attempted murder and conspiracy to commit murder in connection with the shooting of Jason Hallett outside the IWK Health Centre on Nov. 18, 2008.

They are having their case heard by a judge alone.

Two other people charged in the case — Aaron Gregory Marriott, 20, and Shaun Smith, 26 — pleaded guilty earlier this week as the trial was set to begin. Marriott pleaded guilty to attempted murder and Smith pleaded guilty to conspiracy to commit murder.

Hallett — a young man with links to the Melvin crime family — was wounded in the wrist when several shots were fired at him while he was in his Jeep Cherokee. Shortly before, he had stepped out of the front entrance of the hospital after visiting his spouse and new baby.

The shooting marked an escalation in the drug war between the Melvin and Marriott crime families.

In the security footage introduced in Nova Scotia Supreme Court on Thursday, a figure in white can be seen approaching a vehicle in the circular driveway outside the IWK. The figure darts toward the car with one arm raised before running out of the camera frame.

A police witness testified that the figure was Marriott, walking toward the Jeep Cherokee and firing a gun.

Police officers also testified on Thursday that they had started a wire tap for a wider criminal investigation on the day of the shooting.

Those wire taps intercepted a series of cell phone conversations that police say feature Marriott, Smith, Leblanc and Murphy as they worked out instructions for the hit outside the IWK Health Centre.

"I'm watchin' Hallett," said a voice identified as Leblanc.

"I'm watchin' them right now, I'm lookin' at them walkin' right past me," he said, according to evidence entered in court.

Approximately five minutes later, in another recorded conversation, the men spoke to each other from separate vehicles.

"Is that you guys pulling in?" asks Murphy.

"Yeah, where's the Cherokee? Is that the Cherokee?" asks Smith.

"Blaze the Cherokee, the Cherokee," said Leblanc.

The trial, before Justice Kevin Coady, continues Friday.